I’m starting to get really tired of all these LED articles and press-releases now replacing the over-optimistic CFL -pushing articles in the news stream, so sorry for starting out a bit grouchy. But I’ll report them anway.
1. First, this declaration from IKEA has been circulated widely over the last week:
In his dreams maybe. And our nightmare.
IKEA is setting out to change the way you light your home, one bulb at a time.
The Swedish retailer announced plans this week to become the first U.S. home furnishings chain to sell only LED (light emitting diode) bulbs and lamps by 2016 — a bold push for the widespread adoption of this energy-efficient light source in the American market. The world’s biggest home retailer will phase out its non-LED lighting over the next few years.
Which is none of its business! What happened to consumer choice?? I’m not sure if any promises were made to consumers by the U.S. Government, but the European Commission has promised continued availability of halogen lamps until 2016, so I don’t see how IKEA has a right to make them unavailable. But as the profit margin is now bigger for LEDs than for CFLs and halogen lamps, the decision makes perfect sense. IKEA has had nearly two decades to make huge profits on really crappy CFLs, and now they want to make even greater profits on to pushing crappy LEDs instead and removing all competing products.
Smart, from a business point of view, but not a consumer-friendly decision. As explained in previous posts, there are for example elderly and vision impaired who only see well in incandescent/halogen light. With LEDs there are dimming problems, higher price, poorer colour rendition and you get a gloomier ambiance in your home.
Integral to that plan is educating the U.S. consumer about the many benefits of LED lighting: LEDs are not only more eco-friendly than incandescent bulbs, but also use 85% less energy and are therefore less expensive over time, Mike Ward, president of IKEA USA, told DailyFinance.
Sigh… here we go again. For LEDs to use 85% less energy, they would have to produce about 100 lumen per watt. Even the best LEDs on the market don’t do that, and I very much doubt IKEAs LEDs counts among those, either in quality or quantity.
But selling the idea won’t be a slam dunk, as the initial cost outlay for LED bulbs far exceeds that of incandescent bulbs, Ward concedes. A 40-watt LED bulb costs about $12 at IKEA, whereas an incandescent bulb ranges from approximately 49 cents to 79 cents. But what most Americans (about 73%) don’t know is that LED bulbs last 20 years, according to Wakefield Research cited by IKEA. Incandescent bulbs, by contrast, last only about a year, Ward said.
Oh, I think they do know this since it’s being repeated with the same fervor as the earlier CFL PR slogans (which turned out to be totally false in real life). What consumers may not know, however, is that theirLED light will continue to get weaker and weaker with age, and be useless for illumination long before those 20 years are up. In which time much better lamps will probably have been invented and then you’re stuck with an outdated and increasingly poorly performing lamp for a decade or more.
2. Then Philips wants to blind us further with even more extremely cold and glaring LED car headlamps:
These new X-tremeVision LED bulbs are available in two light color temperatures: 4,000 K and 6,000 K. The 4,000 K white light is much closer to daylight than a traditional incandescent interior bulb. The 6,000 K version takes it up a notch and delivers the bright white look of Xenon HID, yet consumes 13 times less energy, according to Philips.
Grrr. Why would anyone want daylight at night? That is totally unnatural. And trying to emulate Xenon HID is an extremely bad idea since they are the worst headlight lamps ever invented. See also my post Blue light hazard? for how blue light is more glaring and blinding than warmer colour temperatures, which is not exactly helpful in traffic! Extreme light is not what you want to meet on the road when driving at night. Is this a sort of empathy thing? Where the driver is meant to care only about his/her own visibility even if it blinds and endangers meeting traffic?
3. At least LED bulbs for home illumination are getting brighter:
4. And some of them cheaper, for some markets [translated from Swedish article from earlier this year]:
Ledlampan spränger drömgräns (“LED lamp passes dream limit”)
The Dutch Lemnis Lighting which started selling a joint lamp for $ 4.95. The goal is to attract consumers who are hesitating to buy led lamps as the price so far has been high, often several hundred pieces.
The lamp is relatively simple and can not be dimmed. It delivers 200 lumens, much like a 25 watt bulb, but the effect is only 5 watts. Color temperature is 2700, which gives a warm white light. Colour rendering index, CRI, is 85, and life is said to be 15,000 hours.
So far the lamp only on sale in Lemnis American online store that caters to clients in USA, Mexico and Canada.
Lemnis Lighting has by his own admission has sold more than 5 million LED lights since 2006. When New Technologies in June 2010 tested LED lights representing 40 watt bulbs so got Lemnis candidate best results of the three tested.
One of the founders is also Warner Philips, the great grandson of the founder of lighting giant Philips.
Clearly not in Europe though. Skipping the dimmability I think is a good idea since they don’t dim nicely anyway. I would still not pay even $5 for a 200 lumen LED, but for those who don’t mind the lower light quality it’s good they are making an effort to bring prices down.
5. And innovations can improve function [another Swedish article from September]:
Ledlampan som vänder upp och ner på tekniken (“The LED lamp that turns technology upside-down”)
3M has developed a LED lamp that is unlike any other. While other lamp manufacturers put the diodes in the bulb and the driver electronics in the socket 3M does the opposite.
In a ring in the socket, ten diodes are placed that send the light straight up. The light passes along the contour of the globe, thanks to a waveguide spreading the light over the entire surface to radiate in all directions. Everything to mimic the light from a frosted lightbulb.
The driver electronics are inside the bulb, a slick solution because it is more spacious and airy there, compared to the socket where the electronics usually sit. Many LEDs therefore have bulky heatsinks to prevent the diods from getting too hot and lose both intensity and longevity. In the 3M narrow slits in the bulb helps ventilate the heat.
3M launches two wattages. One of 13.5 watts which provides 800 lumens and can replace a 60 watt incandescent bulb. The second is at 8.5 watts and provides 450 lumens, equivalent to a 40 watt bulb. Both are available in two versions for warm white and cold light. Life rate is said to be 25 years if you use the lamp three hours a day on average.
The new lights will be on sale in Walmart stores across the U.S. this fall. The price of the 13.5 watt lamp is as reported in the American press to be 25 US dollars.