Migros: First Supermarket with 100% LED Lighting

My husband and I have been slowly switching over to these lights. They're not cheap so we have to do it a little bit at a time. I didn't realize that they put off less heat though.

If Walmart build all new stores and retrofitted stores with LED lights. It would have a huge impact on the lighting industry and enable LEDs to ascend quickly to become a mainstream product for everyone.

It would also make Walmart a true world leader - cutting costs - heating, maintenance,electrical and pollution control

Walmart has 'green' prototype stores in Plano, TX and Aurora, CO that use LEDs everywhere it makes sense to. Additionally, they are slowly rolling LEDs out across the US chain for freezers, display cases, and other close-up lighting - combined with motion sensors, the LEDs cut down drastically on energy used.

Unfortuneately, florescent fixtures for main overhead lighting are still fairly efficient and cheap - it may take a breakthrough in tech or manufacturing (cost) before LEDs will be the sole form of lighting Wal-Mart uses.

It is good to see a supermarket lead the way but the problem is finding domestic solutions. Like how many people know where they can buy LED lighting for their home?

Natural lighting is even cheaper, greener, and more maintenance free than any other solution. While you may not always be able to switch to 100% natural lighting for every scenario, you can at least use it alongside another light source to reduce overall dependence on man-made lighting.

Fluorescent lights have nearly twice better efficiency in terms of lumene/watt. They have a good 10000 hour lifetime as well. I don't understand why somebody would replace fluorescent with LED, especially in this kind of environment- The technology related with them costs much less as well.LEDs are developing fast, but they aren't good enough yet.

LEDs do produce less heat, but especially the high wattage LEDs are so hot that you need to mount them on something to conduct heat. My head-lamp with a 3W Luxeon K2 led heats up to about 80C, and it has a fairly large heat conductor.

Maybe Al Gore should switch to this

Most LED lights are only slightly more efficient than incandescent lights. As far as I know the only one that gets about the same efficiency as a fluorescent fitting is a newish product from Cree that appears to be only available in torches (flashlights).

Most stores already use fluorescent lights so wouldn't see any energy savings. So for this story to be accurate the store must have been using incandescent lights and have switched to lighting with a using the latest high efficiency LED's

Leds only emmit a single frequency (color) of light. My understanding of how white LEDs work is that they use an ultaviolet LED which of course emmits ultraviolet light. This light then strikes a material inside the LED whilch is like the phosor inside a florescent lamp. The excited phosor emiits light of all color.

If this is so then how can they claim there is no infrared or ultraviolet light emmited?

I'm always stumped on where people get these LED's from. Google searches usually seem to bring up some skezzy search results.

If I wanted to retrofit my house to use LED lights, where would I go for them?

Also, what's the word on that phosor/ultraviolet thing?

@ Greg: You can use ultraviolet LEDs to produce white light. But usually a combination of blue and yellow LED light (InGaN-GaN structure) is used today for commercial application. Wikipedia has a nice graph about this, that shows that there is no light emitted below 380nm (uv) or above 780nm (ir): http://en.wikipedia.org/wiki/Image:White_LED.png

The top high brightness white LED technology leaders are:
-Philips Lumiled
-Nichia
-Cree Semiconductor
-Osram
Going to their websites and doing your homework by downloaded spectral emmisions and CRI datasheets and you will see that these emitters do not include any harmful UV or IR wavelegths. The LED color used to illuminate the phosphor is blue not UV. Since LED's must be packaged into luminaries which include contstant current drivers and thermal management technology, you will have to wait for the availability of drop in replacements for traditional lighting fixtures.

I had five overhead lights in my kitchen that used 65W bulbs. They would burn out frequently, I think because the circuit was overloaded. I found PermLight (http://www.permlight.com) and installed their fixed recessed 6" LED lights. It wasn't cheap (and this was before their price went up about 50% -- I don't know why) but it was comparable to hiring someone to come out and install halogen fixtures. So wattage went down from a total of 325 to 75 and the lights have never burned out, including the under-cabinet fluorescents on the same circuit. There may be some other more affordable vendors, but the fixture from PermLight is really easy to install as you can screw it into the existing bulb socket and no wiring is required.

Can I order one set? =)

This year will bring many LED lighting fixtures from street lights to fluorescent replacements. You will not be seeing many drop in replacements/products, LED's require many different variables in Luminaire design then what current lighting systems have to offer. When a LED Luminaire is designed properly and with quality it should reduce energy consumption from 40 – 90% for the lighting application it's replacing. Heat is LEDs worst enemy, if they can't be kept below fail point temperature they won't die but will loose intensity extremely quick, this makes interior commercial lighting a great place for LED's. Most indoor areas are kept at a constant temperature making it easy to manage the heat created from LED's providing an even longer lamp life. When I say heat, it's a small amount of heat created from the LED's unlike what HID or HPS create. LED's will never have the “heat output” that current light systems have. Regarding the price of LED's they are dropping in price, I'm in the business of supplying LED lighting products and over the last year alone we were capable of doubling our line of products. We have been testing products from 2002 until now from well over 50 different manufactures we know the LED lighting industry is going to change dramatically this year. You will see many more products on line and hopefully in stores by 2008.

I just came across a project that uses LED technology for in-floor tile lighting for home use (by a company called LED Technologies Inc.) I was reading the article which described how the LED lights produce so much heat that they require a large heat sink to dissipate it. I have also read several articles on line at http://www.LunarAccents.com that describe how to efficiently move heat away from LEDs while enclosed within a sealed housing. It seems that only a few design firms are catching onto the thermals associated with this new technology!

Retail applications are clearly good places to make this change quickly. Office building tenant improvements would be another.

Waiting for the apps. and the product development / delivery for apartment building corridors and lobbies, parking ramps and individual task lighting necessary for the typical dwelling.

It's perfect.LEDs gonna save this world,It's the only solution for reducing the green house effect.We try to be a qualified LED Lights supplier,we are manufacturing super long lasting and energy saving LED Bulb,LED Light Bulbs,Household LED Lights and outdoor LED Lights to replace all conventional lights.Our LED Bulb can be used with any voltage from 110vac to 240vac. Utilizing high power leds to produce a bright evenly distributed Daylight white and warm white.LED globe bulb is ideal for lighting your porch or around your deck. Uses 80% less electricity than a comparable incandescent bulb

OK, I am sold, i am re-wireing my house in two or three months and really want to install LED lights,
can anyone point me in the right direction, any help appreiciated.

Are there any "full spectrum" LED lamps with high CRIs?

Our local coop, Rainbow Grocery, runs on solar power. But I imagine LEDs are still greener in terms of reduced waste from changing the bulbs :-)

sohbet

mirc

Chat

thanks for artichle

Thats gr8! What I don't understand is why the rest of the world doesn't have the ability to get their acts together and replace all their lights with leds. It is much, much, much better on the environment!

Natural lighting is even cheaper, greener, and more maintenance free than any other solution. While you may not always be able to switch to 100% natural lighting for every scenario, you can at least use it alongside another light source to reduce overall dependence on man-made lighting.

OK, I am sold, i am re-wireing my house in two or three months and really want to install LED lights,
can anyone point me in the right direction, any help appreiciated.

OK, I am sold, i am re-wireing my house in two or three months and really want to install LED lights,
can anyone point me in the right direction, any help appreiciated.

thanks

You know these LED lights are gonna make George bush made oh no we cant be efficient no help the environment we cant be healthy no we cant save our money ill just invest in led company's and keep the prices up...
sorry he just makes me mad

Wal-mart im sure will do something to bring down prices like they did with the fluorescent bulbs

Wal-mart im sure will do something to bring down prices like they did with the fluorescent bulbs

Maybe Al Gore should switch to this...

It is much, much, much better on the environment!

Thanks for the suggestion.
89
youtube

Wal-mart im sure will do something to bring down prices like they did with the fluorescent bulbs

Thanks for the suggestion. ;)

thanx for post

Thats gr8! What I don't understand is why the rest of the world doesn't have the ability to get their acts together and replace all their lights with leds. It is much, much, much better on the environment!

www.sinematurkey.blogcu.com

What I don't understand is why the rest of the world doesn't have the ability to get their acts together and replace all their lights with leds. It is much, much, much better on the

To set the record straight on some of the previous posts...

The most efficient fluorescent bulbs produce around 100 lumens per watt. As of 3/08, the most efficient LEDs produce 93 lumens per watt. However, since the light distribution of LEDs is hemispherical (i.e. all the light is emitted in one hemisphere), LED downlights can be more efficient than fluorescent. Incandescent bulbs typically provide only 15-20 lumens per watt.

LEDs have longer lives than fluorescent (typically 40-50,000 hrs, vs. 20,000 hrs for fluorescent) so they are an excellent choice for locations where access is difficult. Unlike fluorescent bulbs, LEDs have no mercury, so they do not require hazardous waste disposal treatment (see http://www.epa.gov/mercury/spills/index.htm#flourescent ). Also, LEDs rarely break, and there is no risk of injury due to shattered glass, so they are a good choice for schools, day care centers and medical facilities. Also, LEDs are a great choice when motion sensors are deployed. The life of fluorescent bulbs is significantly reduced when they are cycled on and off frequently. Not so with LEDs.

The cost of LED lighting is declining significantly, and LEDs are expected to replace traditional lighting technologies in the next 5-10 years.

For state-of-the-art LED downlighting, see www.galliumlighting.com

LED's are not new , they have been around for years. Indonesia makes then very cheap. I'm puzzled as to why they have been delayed/denied to the North American market. Going to all ED's for home lighting alone would save an untold amount of energy. Governments should get involved to promote LED's if they are serious.

oh nice very nice

thanx for nice share

Natural lighting is even cheaper, greener, and more maintenance free than any other solution. While you may not always be able to switch to 100% natural lighting for every scenario, you can at least use it alongside another light source to reduce overall dependence on man-made lighting.

where do have branches with kosher food?

where do have branches with kosher food?

Fluorescent lights have nearly twice better efficiency in terms of lumene/watt. They have a good 10000 hour lifetime as well. I don't understand why somebody would replace fluorescent with LED, especially in this kind of environment- The technology related with them costs much less as well.LEDs are developing fast, but they aren't good enough yet.

LEDs do produce less heat, but especially the high wattage LEDs are so hot that you need to mount them on something to conduct heat. My head-lamp with a 3W Luxeon K2 led heats up to about 80C, and it has a fairly large heat conductor.

What I don't understand is why the rest of the world doesn't have the ability to get their acts together and replace all their lights with leds.

where do have branches with kosher food?

thanks.

What I don't understand is why the rest of the world doesn't have the ability

LEDs do produce less heat, but especially the high wattage LEDs are so hot that you need to mount them on something to conduct heat. My head-lamp with a 3W Luxeon K2 led heats up to about 80C, and it has a fairly large heat conductor

How many Migros technicians does it take to change a light bulb?" None for the next 16 years! That's 50,000 hours of light, compared to 1,000 hours for an old-fashioned filament lightbulb. In addition to the waste reduction achieved by this long life-span, LEDs do not use harmful mercury nor lead. And there is one last arent you ,

Natural lighting is even cheaper, greener, and more maintenance free than any other solution.

where do have branches with kosher food?

LEDs are developing fast, but they aren't good enough yet.

LEDs are so hot that you need to mount them on something to conduct heat. My head-lamp with ..

LEDs are so hot that you need to mount them on something to conduct heat. My head-lamp with ..

where do have branches with kosher food?

This is pretty cool way to collaborate, but to me "crowdsourcing" implies a lot more democracy and broad based collaborative input. This seems more like an edited collection of short stories with similar theme and I'm guessing it'll read

LEDs are so hot that you need to mount them on something to conduct heat. My head-lamp with ..

Natural lighting is even cheaper, greener, and more maintenance free than any other solution.

This seems more like an edited collection of short stories with similar theme and I'm guessing it'll read

mirc
gazeteler
sohbet

LEDs are so hot that you need to mount them on something to conduct heat. My head-lamp with ..