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Editorial: The Light We Do, and Don't, Want
... In a mostly annual trek into parts mostly unknown (to us, anyway) to see what is going on with lighting in the real world, we were struck two things. 1) There still isn't all that much of the light we want, and 2) There is still a lot of...
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For the latest news dedicated to LEDs in general lighting, tune to Solid State Lighting Design. Applications updates, the latest luminaires and wins, subsystems and componentry in support of lighting in and around the built environment, it's all there!

The Light We Do, and Don't, Want

... In a mostly annual trek into parts mostly unknown (to us, anyway) to see what is going on with lighting in the real world, we were struck two things. 1) There still isn't all that much of the light we want, and 2) There is still a lot of...

View the full story at the bottom of the current news page, or if this is a back issue, go here...

LED Engin Debuts Multi-die IR Emitters
LIGHTimes News Staff

August 26, 2014...LED Engin, Inc. of San Jose, California USA, announced four new families of dual-junction infrared (IR) emitters. The new families of IR emitters include the first 4-die IR emitters. The company claims that the 4-die LZ4 are the world's most powerful IR emitters, providing 6X the flux density of conventional emitters. LED Engin says that the LZ4 offers six times the range and resolution of surveillance and security systems of conventional IR emitters.

The company contends that its single-die IR emitter provide 70% more output than conventional single junction IR emitters. Each die in both product families has two serially-connected junctions, boosting output with two radiant surfaces. A continuous 5A pulse drive enables a short output burst for even greater range. The emitters are designed for IR systems operating at up to 150m.

At 1A drive current, the LZ4 and LZ1 emitters come in 940nm and 850nm versions and produce 4.5W flux and 1.15W output respectively. The packages are tiny: 7 x 7mm for the LZ4 and 4.4 x 4.4mm for the LZ1. According to the company, the small footprint of the two emitters enables the design of very small, discrete fixtures.

The emitters have thermal resistance 50% to 75% lower than competing parts: 2.8°C/W for four-die products and 6.0°C/W for single-die. A proprietary CTE matched and multi-layer ceramic substrate allows the use of smaller heat sinks for more compact fixtures.

The company says that the emitters’ integrated glass primary lenses are far more robust than molded silicone types and do not degrade over time. A suite of complementary total internal reflection (TIR) lenses, in beam angles from 8 to 40 degrees enables fixtures with narrow, longer-distance or wider, shorter-distance beams.

LED Engin says that the optimized thermal and optical performance of the packaged materials ensures consistent and reliable operation throughout the emitters' lifetimes, particularly in outdoor environments with high humidity and high ambient temperatures.

"Equipment manufacturers in established markets such as surveillance, transportation and machine vision, and newer businesses in biometrics and gesture recognition, are all looking for ways to differentiate their products through improved performance, smaller size and lower energy consumption. Our new emitters satisfy these requirements uniquely," said Uwe Thomas, VP of product management.

The IR Dual Junction emitters are available now from LED Engin and its distributors.

Excelitas Adds Adapter and Controller to OmniCure UV LED Curing Tools
LIGHTimes News Staff

August 26, 2014...Excelitas Technologies Corp. of Mississauga, Canada, announced the expansion of the OmniCure AC Series UV LED curing solutions. The company added the new PLC2000 Controller and AC Optical Adapter to complement the OmniCure AC Series of high power UV LED systems.

When connected to an OmniCure AC Series UV LED head, the OmniCure PLC2000 multipurpose external controller device helps intelligently control, monitor, and manage the curing solution to ensure a repeatable UV process. The PLC2000 can dynamically adjust the output intensity, exposure time, and on/off capabilities. At the same time, it can offer system information and error monitoring features.

The PLC2000 also supports RS232 and RS485 communications allowing multiple UV LED heads to be connected, accessed, or controlled through a single computer terminal.

The new OmniCure AC Optical Adaptor can convert a high irradiance focused exposure area into a larger area while maintaining exceptional illumination uniformity. The optical adaptor is designed for use with the OmniCure AC4 and AC7 Series UV LED systems. The AC Optical Adaptor creates evenly distributed irradiance across output areas of 100mm x 100mm, 100mm x 150mm, 70mm x 70mm and other custom sizes that are available upon request.

Mike Kay, director of product management, Industrial Curing at Excelitas Technologies. "The PLC2000 and AC Optical Adaptor are product accessories designed specifically for the OmniCure AC Series UV LED curing systems to offer enhanced capabilities for maximum flexibility and control of their UV process."

The OmniCure product family of UV curing solutions will be showcased at The Assembly Show in Rosemount, IL at the Excelitas booth #1424 from October 29-30, 2014 and at MD&M MN, Minneapolis, MN at booth #641 from October 29-30, 2014.

Elation EZ4 LED Display and Elation LED Luminaires Installed at Qzone in Quil Ceda Creek Casino
LIGHTimes News Staff

August 26, 2014...Quil Ceda Creek Casino, located on the Tulalip Indian Reservation north of Seattle, installed an Elation Professional EZ4 LED video screen in addition to Elation Platinum Spot LED II moving heads and EPAR Series LED fixtures. Opened in April 2014, Qzone functions as a music venue, sports bar, and café and even holds corporate meetings occasionally. The space, which originally started as a nightclub before its convertion to a gaming room and now Qzone, is located just off the main Quil Ceda Creek Casino gaming floor. The client wanted to offer customers different options and events in order to draw them onto the property.

Agility was called in to design, build and install the lighting and video package six months prior to opening. Agility initially planned on a 6 mm pixel pitch panel for the centerpiece LED video screen. “Venues of this type are relying more and more on LED walls,” said Agility’s Rob Johnson, account manager on the project. “Because the LED screen in Qzone was to be the centerpiece of the room and be used for a variety of purposes, we were a bit concerned about the pixel pitch. We took a trip to the Elation headquarters in L.A. where we had the chance to compare the 6 mm screen with the 4 mm and came away convinced the 4 mm EZ4 was the best choice for this install.”

Elation's 8 ft. x 12 ft. EZ4 LED screen was installed directly behind a 20 ft. wide by 13 ft. deep stage served as the primary presentation platform and hosts live music and assorted acts. The LED screen is hard to miss from the venue’s entrances. “It’s the focal point of the room and looks great when you enter. It even looks good when you’re close to it at the front of the stage,” Rob stated. Rob cites the EZ4’s easy assembly, price point, and versatility as factors in its choice. “The old club had a projector and screen but you can’t use that type of technology when you have a performer or speaker on stage. The EZ4 is a real multipurpose screen for a multipurpose room and gives the venue a lot of options.”

The EZ4 is the company's highest resolution LED panel. It offers high density of 10,816 pixels (104 x 104) per panel for sharp and clear picture with vivid colors. The EZ4 screen can serve as a visual jukebox to play music videos or simply to watch TV. It also acts like a big computer screen for corporate meetings and presentations.

Guests to Qzone can get up close and personal to their favorite sports teams with the display’s superior image quality and 1,200 Nits of brightness. The display also serves as the the high quality visual backdrop for bands and performers who need to run video and graphics. Elation Media Master Express media server manages and plays back video and graphics for performances and events.

Rob specified LED lighting for its many benefits including power savings. The Qzone lighting system includes Elation 135W Platinum Spot LED II color and pattern changing moving heads and the EPAR Tri LED lights, which are both mounted on a Global Truss system hanging over the dance floor and stage. Rob chose the Platinum Spot LED II’s positioned on finger trusses over the dance floor, for their compact size and attractive price. Their compact size fit in well with the room and its short trim heights. “They actually make the room look bigger and taller,” he said.

EPAR Tri RGB LED lights used for band washes provide color wash from 20 ft. upstage and downstage trusses. The EPAR QA fixtures with their added amber LED for extended color range and effective color temperature control, highlight speakers on stage. Qzone hosts bands, DJs, comedy acts and other events and performances that test the reliability and versatility of EZ4 LED screen and the LED lighting daily. Rob reports that since its installation earlier in the year, the system has held up very well.

LG Electronics Offers Interactive Fan Experiences At 2014 US Open
LIGHTimes News Staff

August 26, 2014...At the U.S. Open Tennis Championships, LG Electronics USA created a wide variety of interactive fan experiences. The championships start this week at the USTA Billie Jean King National Tennis Center (NTC) in Flushing Meadows-Corona Park, Queens. LG serves as the Official Mobile Device Partner and Official Electronics Partner of the 2014 US Open, which runs through Sept 8.

Fans will be able to engage in tennis-themed activities through the new LG G3 smartphone at the LG Winner's Circle, tennis. LG's OLED TVs and the LG Ultra HD 4K TVs with four times the resolution of Full HD will provide interactive content with LG's Smart TV+ webOS™ platform, an intuitive user interface for streaming content and apps.

In the 1,300 square foot LG Winner's Circle located at the NTC:

Fans can compete against one another to answer US Open-themed trivia questions in the "LG webOS Challenge," LG's new webOS-enabled smart TVs and the LG Magic Remote.

The "LG OLED Challenge" will allow spectators to review "on court" shots on LG's OLED TVs to determine if a shot is in or out by more than the 4mm thickness of the LG OLED screen,

At the "Swing in 4K" station, fans can watch their tennis swings live on LG's new 84-inch class (83.8 inches measured diagonally) Ultra HD TV.

The "LG G3 Selfie Station," allows fans to pose after a winning shot and have their selfies taken using the LG G3 smartphone's Gesture Shutter feature.

The official 2014 US Open App, available on Aug. 25 via the Google Play Store, allows users to join the US Open Live Prediction Challenge, presented by LG G3. For the challenge, fans can predict what might happen next to earn points toward LG prizes. LG mobile device users earn extra points and enjoy exclusive access to the LG Leaderboard.

"LG's innovative products help fans create fun, memorable experiences," said David VanderWaal, head of marketing for LG Electronics USA. "We're honored to bring fans those experiences, whether it's onsite at the US Open in New York, at home, or on-the-go through the amazing picture quality of our OLED and Ultra HD TVs and our smartphones."

Lew Sherr, Chief Revenue Officer of the USTA said, "LG's gallery activation will enhance the fan experience on-site and the new predictive game presented by the LG G3 smartphone on the US Open mobile app gives fans a new and innovative way to connect with the Open."

DOE Publishes 2014 SSL Manufacturing R&D Roadmap
SSL Design News Staff

August 21, 2014...The U.S. Department of Energy published the 2014 Solid-State Lighting Manufacturing R&D Roadmap. The updated Roadmap complements the SSL R&D Multi-Year Program Plan that guides the Product Development and Core Technology R&D programs. One of the roadmap's goals is to guide the Manufacturing R&D program and help direct funding solicitations for it. The Roadmap also offers guidance for material and equipment suppliers, based on industry consensus about the expected evolution of SSL manufacturing.

Industry feedback for the updated report comes from a series of roundtables with invited experts and from the attendees of DOE's SSL Manufacturing R&D Workshop that was held in May in San Diego. The 2014 Roadmap adds the discussion of the OLED manufacturing cost model. DOE says it will continue to update the Roadmap annually in collaboration with industry partners, to provide an outline of research and process development priorities, and new analysis as the technology and marketplace evolve.

Download the 2014 Manufacturing Roadmap.

Navigant Consulting conducted the analysis update. Navigant concluded that in the U.S. the annual source energy savings from LED lighting in 2013 more than doubled from the previous year to 188 trillion British thermal units (BTUs). Navigant points out that this is equivalent to an annual energy cost savings of about $1.8 billion.

While these current energy savings are significant, market penetration is still quite modest. Navigant estimates that LED-based A-lamps make up only about 1 percent of all installed A-lamps. However, the company asserts that growth is happening rapidly. Navigant also reported that from 2012 to 2013 that the U.S. installed base of LEDs in general lighting applications had more than doubled to about 105 million units.

Navigant further concluded this that the 188 trillion BTU savings is a tiny fraction that of the potential energy savings that complete adoption of SSL lighting in U.S., 4.1 quadrillion BTU. Navigant says that while widespread adoption may be several years in the future, the potential reveals the need of developing a robust, high-capacity manufacturing capability for SSL. Market adoption is likely to accelerate as prices continue to fall, and unit sales are expected to increase at a much faster rate than revenues, according to Navigant.

In response to this energy-saving opportunity, the DOE launched the SSL manufacturing initiative in 2009 to improve SSL product quality and consistency, establish a strong SSL manufacturing base, and support reductions in SSL manufacturing cost in the U.S.

Current projects that the DOE Manufacturing Initiative supports include Philips Lumileds’ development of patterned sapphire substrate technology for lighting caliber LEDs, Cree’s development of lower cost integrated LED luminaires, and OLEDWorks’ development of organic light-emitting diode (OLED) deposition technology for OLED lighting products. DOE-supported SSL manufacturing R&D projects cover much of the value chain of SSL production, including designs for lower costs, process improvements, manufacturing equipment, testing, and materials.

The DOE engaged the LED community through a "Round-Table" meeting of invited experts to review the state of LED-SSL manufacturing technology and identify areas for improvement. The DOE followed the meeting with its SSL Manufacturing R&D workshop and a post-workshop conference call held among participants.

The participants drew several conclusions:

  1. Achieving the targeted color point adds complexity and cost to the luminaire manufacturing process especially in applications demanding tight color control.
  2. Long-term color stability is still poorly understood for LED -based lighting products and (probably OLED as well). Mitigating color shift over time adds to the cost of LED lighting products. Furthermore, the participants report concludes that the ability to understand and predict color shift over time would simplify the manufacturing process, reduce manufacturing costs, and increase consumer confidence in LED lighting products.
  3. Luminaire manufacturing is now putting less emphasis on the lamp-fixture paradigm and placing more emphasis on integrated luminaires minimize cost and maximize efficiency.
  4. The report concludes that highly flexible luminaire and module manufacturing will be needed to accommodate the enormous variety of designs that customers demanded. Production lines will have to be efficient and cost-effective, even with relatively low numbers for any given product variant. The required production line improvements may call for innovative and perhaps more flexible manufacturing methods and equipment.
  5. The manufacturing of phosphors and down converters and their process of being applied to LEDs is costly, and innovations in this area could potentially reduce cost, simplify the manufacturing process, improve color quality, increase light output, and improve efficacy.
  6. The domestic OLED community could work together to create a viable OLED lighting manufacturing infrastructure and promote consumer acceptance of OLED products. Larger volume production is required to exercise the supply chain and manufacturing processes in order to identify weaknesses and opportunities.
  7. The OLED community is preparing to introduce products for lighting by examining the barriers in the adoption of LED lighting and understanding the needs of lighting designers and luminaire makers.
  8. OLED fabrication methods including vapor deposition approaches and hybrid approaches are being explored. Efforts are underway to promote a panel fabrication process solution.

The report concluded that currently, the main challenge for LED lighting is to continue ramping up production and drive down costs while maintaining product quality and consistency. The emerging challenge is to demonstrate to consumers the value that LED technology offers in terms of extended lifetime, energy consumption and added functionality while avoiding consumer disappointment.

In the short-term, the expansion of LED lighting manufacturing capacity will require the refinement of existing manufacturing approaches. Longer-term, it will require the introduction of innovative approaches to lighting product design and manufacturing.

The report asserts that the biggest challenge for OLEDs is to develop acceptable, cost-effective manufacturing processes beyond what is being done for the manufacturing of OLED displays and build demand by identifying lighting applications that play to the strengths of OLED technology.

UV LEDs from SETi Used in Newly Installed Decontamination System for Scientific Experiments Aboard the International Space Station
LIGHTimes News Staff

August 21, 2014...Onboard the International Space Station, crew members using the Microgravity Science Glovebox (MSG), can now safely perform biological research. NASA has installed a UV LED-based decontamination system developed by Teledyne Brown in partnership with Marshal for MSG. UV-LEDs from Sensor Electronic Technology Inc. (SETi) of Columbia, South Carolina sanitize liquids, air, and surfaces inside MSG within minutes. SETi developed the UV LEDs in part through US Defense Advanced Research Projects Agency (DARPA) Compact Mid-Ultraviolet Technology (CMUVT) program. The decontamination process before and after experiments with the UV LEDs helps to ensure the crew safety from biological experiments inside MSG.

MSG is a highly-specialized containment system for conducting scientific experiments in zero or low gravity. Crew members aboard the International Space Station have used MSG to conduct experiments for the past ten years. With the recent installation the decontamination system, the facility can now host life science experiments.

"We are really excited to be able to provide this new system that will enable astronauts aboard the space station the ability to conduct important life science research," said Lee Jordan, project manager of the MSG at Marshall. "For example, with this system, crews can conduct experiments related to non-human cell biology that we couldn’t do before in the MSG. The work we do aboard the space station is so vital because it helps us discover technologies that can lead to bettering our lives on Earth."

A sanitation process cleans up spills inside the glovebox and uses high power UV LEDs with sufficiently short wavelength for ultraviolet germicidal irradiation to kill any microorganisms. The sanitation process also removes airborne contaminants such as biological and chemical impurities and offers optimal accommodations for life science and cell science research. It has an exchangeable glove system that was redesigned for biological studies.

The decontamination system is available to all biological payloads that operate in the MSG and require a sterile environment. Rodent research studies will be among the first experiments to employ the decontamination system. Rodent Research Hardware and Operations Validation (Rodent Research-1) is scheduled to launch aboard the fourth commercial resupply flight of SpaceX’s Dragon spacecraft. The long-term rodent studies in space will examine the effects of microgravity on rodents that serve as model organisms.

ROE Visual Introduces Black OnyX P3.47 HD LED Display for Overseas Market
LIGHTimes News Staff

August 21, 2014...ROE Visual Co., Ltd, a maker of creative LED displays based in Shenzhen, China, has launched the Black OnyX P3.47 HD LED display. ROE Visual's new high-performance indoor HD LED display, the Black OnyX, incorporates professional industrial design. The display's magnesium alloy panel makes it strong and lightweight. The module employs Multi-Color's latest anti-glare black LEDs to attain a high contrast ratio. Driving IC MBI5153 supports great image quality at a low brightness with a high refresh rate.

ROE visual's new control system - Evision powers the Black Onyx. Evision supports a maximum resolution of 2560x1024. A knob allows real-time brightness adjustments and using a remote control allows real-time configuration of the display. All operating and calibrating parameters are stored. Resetting is not necessary after replacing the module.

The friendly and innovative design supports convenient installation for hanging and stacking for large events, concert tours and exhibitions. The company claims that the finest pixel pitch and outstanding color processing of the Black OnyX ensures superior performance in lecture halls and TV studios.

Jason Lu, ROE Visual's General Manager, commented, "In the LED industry, it is obvious that a single product is insufficient to meet the demands of customers. Because customers need a complete set of solutions, Black OynX, as a newcomer who wants to surpass the formers, has to develop such solutions rather than a simple product. Therefore, we design and promote this product by carefully considering the requirements and ideas of customers prior to and after the purchase, which enables our customers get maximum value from this product."

For Audi Shootout, Roe Visual shipped a 7-square-meter Black OnyX display to Europe on August 1. ROE's Black OnyX will be showcased at PLASA LONDN(Oct. 5-8) and LDI LAS VEGAS(Nov. 21-23) in 2014.

Green Spirit Farms Chooses Illumitex LED Grow Lights to Grow Good Local Food
LIGHTimes News Staff

August 21, 2014...Illumitex of Austin, Texas, reported that the company has partnered with Green Spirit Farms of New Buffalo, Michigan. According to Illumitex, the partnership will continue its efforts of enabling independent farmers to provide locally grown, fresh food to communities across the country.

Illumitex plans to replace Green Spirit Farm's existing induction lighting at its vertical farm operations with its LED grow lights. Illumitex says Green Spirit Farms plans to use only Illumitex LED grow lights as the light source for Greens Spirit's planned expansion farms. Green Spirit tested numerous lights of various types, including other LEDs before deciding to employ Illumitex grow lights.

“We at Green Spirit Farms believe that Illumitex is the premiere lighting source for indoor horticulture based on our independent testing conducted this year in New Buffalo. We are excited to announce this fruitful partnership that will assist us in further vertical farming innovation,” said Daniel Kluko, Green Spirit Farms’ director of research and development. “Illumitex LEDS will allow us to grow more produce in less time using less energy, which ultimately is good for our business, our customers and the planet we all share.”

Green Spirit also plans on choosing Illumitex Eclipse grow lights for the systems it will develops for other vertical farms using its unique Vertical Grow Systems.

Illumitex points out that vertical farming is quickly becoming the food-sourcing solution of choice for markets and restaurants that want locally sourced, fresh produce. A city's Centrally-located, abandoned warehouse buildings can reportedly be transformed into urban farms that supply freshly-picked tomatoes, herbs, and greens locally. Illumitex recognizes the need for alternative farming methods to feed the world's growing population with a finite amount of available farmland.

“With more and more Americans relocating from the suburbs to the cities, it is becoming very important to grow fresh food closer to the population,” said Eric Anderson, Illumitex VP of marketing and business development. “Together, Green Spirit Farms and Illumitex are making that goal a reality. The controlled environment agriculture expertise of Green Spirit Farms coupled with their innovative business model and Illumitex’s LED technology is a very powerful combination.”

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Commentary & Perspective...

The Light We Do, and Don't, Want
Commentary Staff

August 14, 2014...In a mostly annual trek into parts mostly unknown (to us, anyway) to see what is going on with lighting in the real world, we were struck two things. 1) There still isn't all that much of the light we want, and 2) There is still a lot of light we don't want. While few probably fell off their chair on that revelation, we all tend to have so much legacy lighting around us that we tend not to reflect too much on what we're missing, much less on what we're getting that we really shouldn't be.

One of the first stops on the tour was into The Caverns at Natural Bridges, in the mountains of Virginia. Lots of natural wonder to be found in a mostly horizontal cave that heads into a mountain, which therefore gets deeper and deeper "underground" as you head in. That means more opportunity for water to pick up minerals on its way down, and when they hit the roof or floor of the empty space, they give the minerals back. That water also carries clay with in this particular cavern, so you get pretty impressive "mudstones" that can be scrubbed white for a day or two (also right there on their website). And you get green stuff -- algae in this case, that made it down there on some air currents, and grows courtesy of the moisture and the artificial light. Nice, broad spectrum incandescent, to enhance our viewing pleasure, is prevalent, and with close to 8 hours a day on time, it's plenty to grow. It's the light we don't want. The guide pointed out where they had begun to changeover to LED lighting, that would "supposedly" help with that. The company apparently specializes in that kind of thing. Don't know who it is yet, but hopefully they'll let us know their formula, which we'd expect to be removing some spectra that algae like, and which the viewers won't necessarily miss.

The next stop was the Smithsonian Air and Space Museum. A look at the high ceiling revealed some nice looking area lights that fit the model of Beta (now Cree's) original Edge product line. The optics were well done, and weren't obnoxious to look toward. With good color rendering, it made it the kind of light we do want. Unfortunately, the LED lighting doesn't appear to have gained overwhelming traction in that facility, as a number of displays protected from curious fingers behind a protective glass barrier required the traditional "bob and weave" to see it all against the glare in the glass. The original Wright flyer (the, the original... very cool) was illuminated by a beachy sort of Kitty Hawk sand dune kind of towards sunset yellow. Quite emotionally stirring, and very deficit of helpful wavelengths when it comes to visual acuity. LED lighting shouldn't be challenged to provide a cure for that - ambiance plus fidelity, all for just a few pennies per lumen. Even better would have been a bit more experiential display, with the light giving us the full sunrise-midday-sunset playback of a typical day over the course of 10 minutes, along with a background soundtrack of seabreeze, sputtering engines and enthusiastic hollering (I'd recommend they check out Telelumen's solution for the realistic light playback -- Yo, Smithsonian. Tell Steve Paolini we said "Hi").

At the Smithsonian Art and Portrait gallery, CMH and halogen were the watchwords. One of the few artifacts in the extensive gallery was a civil war sword. The sign read (paraphrase), "This is a replica. The original is carefully stored away to prevent it from being damaged by light." There's a thrill! A genuine, real live, carefully detailed replica. We could have gotten that in the wax museum in Gatlinburg, TN (lots of LED lights in that town... sort of Orlando in the mountains). In a room only lit by artificial light, should we really need to protect a treasure from the damage that light can cause? Maybe we can put in the kind of light we want, and get rid of the kind we don't.

The good news here is the LED lighting is in its infancy when it comes to what we know, or don't know, about light. As we've said many times before, incumbent technologies didn't offer a particularly cost-effective solution set to test each and every wavelength. LEDs open that door, and with that, our knowledge. We've mentioned it a lot, but it's only because we don't want anyone to miss it: This whole thing is about what our light can do for us, and very quickly, it will also be about what our light has been doing too us. Up til now, anyone has been able to claim, "That's all we had." No one was suing their employers for using kerosene lamps, since the choice then was those, or darkness. When Edison heated that wire, we quickly had good, healthy (enough) light. Then came the longevity and efficiency of fluorescent which quickly devolved to devising the bare minimum of phosphor spikes to fool our eyes into thinking it looked ok, but do we really know what we were missing? Soon enough, we'll know what the lack of, or extra of, in terms of photons were or weren't doing for us. Then there will be published papers that get cited in the lawsuits for decades of bad lighting causing many of the ails of society. And the justifiable defense will be "We didn't know." All will be forgiven, with the out of court settlement being total conversion to "natural" LED lighting (with none of the bad additives).

This will be way better than that incandescent bulb ban. We promise.

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