Comments on: 60% of LED Bulbs DIE within 6 months http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/ A blog about energy conservation, gadgets, and shiny things. Sat, 21 Nov 2009 00:15:54 +0000 http://wordpress.org/?v=2.6.1 By: Buyer Beware Suspect Quality LED Products Filling Your Inbox « The Lighting Blog http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/#comment-9416 Buyer Beware Suspect Quality LED Products Filling Your Inbox « The Lighting Blog Thu, 15 Oct 2009 08:24:44 +0000 http://blog.eternaleds.com/?p=204#comment-9416 [...] manufacturers and promoters trying to jump on the LED bandwagon, the question is what % of them are complete garbage?. We’ve taken the time to contact a number of manufacturers and tested their products thoroughly, [...] [...] manufacturers and promoters trying to jump on the LED bandwagon, the question is what % of them are complete garbage?. We’ve taken the time to contact a number of manufacturers and tested their products thoroughly, [...]

]]> By: webmaster http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/#comment-4672 webmaster Mon, 24 Aug 2009 00:13:43 +0000 http://blog.eternaleds.com/?p=204#comment-4672 Thanks for the commet LightTest Labs. I agree. The "antiquated" ways of measuring light are simply not suitable from CRI, to lumens - it's just not a good way to compare LEDs to traditional light sources further compounding the misinformation that is out there! Thanks for the commet LightTest Labs. I agree. The “antiquated” ways of measuring light are simply not suitable from CRI, to lumens - it’s just not a good way to compare LEDs to traditional light sources further compounding the misinformation that is out there!

]]> By: LightTest Labs http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/#comment-1939 LightTest Labs Thu, 23 Jul 2009 16:11:45 +0000 http://blog.eternaleds.com/?p=204#comment-1939 Being a solid-state physicist and a founder of a light measurement company, I have to say that inaccurate reporting of photometric quantities of LEDs and SSL is my pet peeve. LEDs are fundamentally different from conventional (incandescent, CFL) lighting, which in turn requires a fundamentally different approach to quantifying the output and color qualities of SSL. The importance of using "spectral" data is absolutely critical for accurate reporting, and yet the majority of the manufacturers continue using single-channel radiometers, lux meters, and filter based color temperature meters, routinely yielding reporting errors from 30% to 300%. This is sad, because it undermines consumer confidence in what is otherwise a great technology. My message? Get proper instrumentation, properly trained staff, or farm out the measurements to those who know what they are doing (yes, someone like LightTest Labs :) Being a solid-state physicist and a founder of a light measurement company, I have to say that inaccurate reporting of photometric quantities of LEDs and SSL is my pet peeve. LEDs are fundamentally different from conventional (incandescent, CFL) lighting, which in turn requires a fundamentally different approach to quantifying the output and color qualities of SSL.

The importance of using “spectral” data is absolutely critical for accurate reporting, and yet the majority of the manufacturers continue using single-channel radiometers, lux meters, and filter based color temperature meters, routinely yielding reporting errors from 30% to 300%. This is sad, because it undermines consumer confidence in what is otherwise a great technology.

My message? Get proper instrumentation, properly trained staff, or farm out the measurements to those who know what they are doing (yes, someone like LightTest Labs :)

]]> By: shawn http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/#comment-1629 shawn Fri, 12 Jun 2009 06:52:03 +0000 http://blog.eternaleds.com/?p=204#comment-1629 a little sad with this news. we are a led display&lights supplier from China. most suppliers guarantee 1 years for their lamps. there are some trial LED lighting programs here, such as 100,000 LED street lamp, it's a govenmental programe, result turn to be not as good as expect, all lights decay very fast. some tech problem need to be settled. but why so many buyers go to China, two reasons, objectly 1. there are some good suppliers here, they can provide you hi quality products. 2. there are many suppliers here, they can provide you "suitable"products here, never forget-you are business many. let me give a example some 10 days ago, an American buyer bought 500 pcs MR-16 from a supplier here, this buyer need Semileds LEDs for lighting source, copper base, with a low price. finally, the buyer was not satified with the quality. i understand the reason till i know the price. every one wanna get good quality products with a low price, but.... if i were the supplier, i will show the buyer, for example, 10USD is A, 15 USD is B, and 20 USD is C, you have the choice. suppliers here always make a promise before they get the order, that's the key. a little sad with this news. we are a led display&lights supplier from China. most suppliers guarantee 1 years for their lamps. there are some trial LED lighting programs here, such as 100,000 LED street lamp, it’s a govenmental programe, result turn to be not as good as expect, all lights decay very fast.
some tech problem need to be settled. but why so many buyers go to China, two reasons, objectly
1. there are some good suppliers here, they can provide you hi quality products.
2. there are many suppliers here, they can provide you “suitable”products here, never forget-you are business many.

let me give a example

some 10 days ago, an American buyer bought 500 pcs MR-16 from a supplier here, this buyer need Semileds LEDs for lighting source, copper base, with a low price. finally, the buyer was not satified with the quality. i understand the reason till i know the price. every one wanna get good quality products with a low price, but….

if i were the supplier, i will show the buyer, for example, 10USD is A, 15 USD is B, and 20 USD is C, you have the choice. suppliers here always make a promise before they get the order, that’s the key.

]]> By: SportsNut http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/#comment-1591 SportsNut Wed, 03 Jun 2009 15:03:37 +0000 http://blog.eternaleds.com/?p=204#comment-1591 Hey, A bit of a sports nut here, and someone who is happy that many of the stadiums (like Yankee Stadium and Dallas Cowboys Stadium in, you guessed it, Dallas), are using the latest in LED tech to power and enhance their scoreboards. They've become entertainment in themselves. The incredible clarity and color and special features -- like messaging -- heighten my interest in what's going on on the field as well as on the scoreboard. Second reason I'm captivated by the new generation of scoreboards is that they're energy efficient because they're using LED tech -- and they have a rated life of 100,000 hours–and energy consumption of less than a third of traditional incandescent bulbs. And the third reason: this industry supports U.S. jobs. There's a company down in Georgia, electro-mech.com, that's making these football scoreboards, baseball scoreboards, hockey scoreboards (you name the sport, they make a scoreboard for it) for high schools all over the South. Glad to see Americans making this stuff. Regarding the limited life of Asian LED bulbs; I heard that many manufacturers of products that use this technology guarantee replacement if light ceases. Whatever the case, aren't LED scoreboards a big improvement over incandescent-powered scoreboards?! Hey,

A bit of a sports nut here, and someone who is happy that many of the stadiums (like Yankee Stadium and Dallas Cowboys Stadium in, you guessed it, Dallas), are using the latest in LED tech to power and enhance their scoreboards. They’ve become entertainment in themselves. The incredible clarity and color and special features — like messaging — heighten my interest in what’s going on on the field as well as on the scoreboard.

Second reason I’m captivated by the new generation of scoreboards is that they’re energy efficient because they’re using LED tech — and they have a rated life of 100,000 hours–and energy consumption of less than a third of traditional incandescent bulbs.

And the third reason: this industry supports U.S. jobs. There’s a company down in Georgia, electro-mech.com, that’s making these football scoreboards, baseball scoreboards, hockey scoreboards (you name the sport, they make a scoreboard for it) for high schools all over the South. Glad to see Americans making this stuff.

Regarding the limited life of Asian LED bulbs; I heard that many manufacturers of products that use this technology guarantee replacement if light ceases.

Whatever the case, aren’t LED scoreboards a big improvement over incandescent-powered scoreboards?!

]]> By: Solar Lighting International http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/#comment-1480 Solar Lighting International Thu, 21 May 2009 13:41:38 +0000 http://blog.eternaleds.com/?p=204#comment-1480 Yea there definitely is a stigma over LEDs in general. We are in the solar lighting industry (and now commercial LED lighting) and it is a widely shared opinion within the solar lighting industry that many of the lighting systems out of Asia are far inferior in quality, but they do cost less. It only took a couple years for this opinion to grow. I feel it is the same with the LED products. Many of the LEDs lights are out of the Asia markets and there are new LED suppliers everyday over there. This stigma has definitely been apparent when taking out new ALT (commercial LED troffer) to market. But we offer a 5 year warranty are know that even if our lights were run 24 hours a day they will last much longer. Also we have come up with chipsets and drivers that will get from 3,280 to 7,200 lumens and run over 30% more efficient than standard fluorescent fixtures. Here is our <a href="http://www.solarlightingitl.com/alt.html" rel="nofollow">ALT Page</a> for more info. My two cents, Chris Yea there definitely is a stigma over LEDs in general. We are in the solar lighting industry (and now commercial LED lighting) and it is a widely shared opinion within the solar lighting industry that many of the lighting systems out of Asia are far inferior in quality, but they do cost less. It only took a couple years for this opinion to grow. I feel it is the same with the LED products. Many of the LEDs lights are out of the Asia markets and there are new LED suppliers everyday over there. This stigma has definitely been apparent when taking out new ALT (commercial LED troffer) to market. But we offer a 5 year warranty are know that even if our lights were run 24 hours a day they will last much longer. Also we have come up with chipsets and drivers that will get from 3,280 to 7,200 lumens and run over 30% more efficient than standard fluorescent fixtures.

Here is our ALT Page for more info.

My two cents,

Chris

]]> By: John Armstrong http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/#comment-1457 John Armstrong Fri, 15 May 2009 20:56:03 +0000 http://blog.eternaleds.com/?p=204#comment-1457 We supply technicians and mechanics with LED lighting tools and have been doing so for over 3 years. Most of our products feature a single, high performance LED from manufacturers such as Luxeon, Seoul Semiconductor and Cree and have outputs to almost 200 lumens. We have NEVER had an LED failure in any of our products, and have sold thousands of units. BTW this new product may not be the world's brightest flashlight, but it is claimed to be the World's Brightest <a href="http://www.led-worklight.com/product/MXN00220" rel="nofollow">Penlight</a> We supply technicians and mechanics with LED lighting tools and have been doing so for over 3 years. Most of our products feature a single, high performance LED from manufacturers such as Luxeon, Seoul Semiconductor and Cree and have outputs to almost 200 lumens. We have NEVER had an LED failure in any of our products, and have sold thousands of units.

BTW this new product may not be the world’s brightest flashlight, but it is claimed to be the World’s Brightest Penlight

]]> By: Abdullah Bilir http://blog.eternaleds.com/2009/05/60-of-led-bulbs-die-within-6-months/#comment-1446 Abdullah Bilir Thu, 14 May 2009 12:30:27 +0000 http://blog.eternaleds.com/?p=204#comment-1446 My company also makes LED lamps and to say truth a lot of our customers at least have 1 bad memory with their previous leds. When I first recommend LED lamps to them they react coldly. I think some low quality LED lamps on market is threating the future of giant LED market. I recommend to buyers to avoid too cheap power LED lamps, request warranty. I will send our goods to an undependant test organisation too. My company also makes LED lamps and to say truth a lot of our customers at least have 1 bad memory with their previous leds. When I first recommend LED lamps to them they react coldly. I think some low quality LED lamps on market is threating the future of giant LED market. I recommend to buyers to avoid too cheap power LED lamps, request warranty.
I will send our goods to an undependant test organisation too.

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