LED efficiency droop revealed - LEDs to get more efficient/cheaper

[impur]

Cause of LED efficiency droop finally revealed

Very interesting article about the efficiency droop in LEDs. As someone who is switching back to T5, I am very interested in seeing how this changes the LED market.

 

[mike007]

Na i will stay with my leds.

 

[impur]

Huh? This isn't about getting rid of your LEDs, its about advancement of the technology.

 

[mike007]

Okay As someone who is switching back to T5 threw me off.

 

[impur]

Ahhhh lol yah I am switching back to T5 but I will be keeping an eye on what comes out of this discovery

 

[Pappy]

Well unfortunately no data is provided in link or any of the highlighted bullets that I was able to see. BUT my translation of what was written was that LEDs driven at high current will drop efficiency of bulbs...
So my understanding is that all these Chinese or value fixtures with 1 watt LEDs that are driven at max are much less efficient which all the LED gurus have been saying. Hence the recommendation of using 3 watt Cree bulbs and running them at a lower percentage of power. So I guess the Crees are in fact more efficient and using the proper drivers there probably is little or no decline in efficiency and output of these bulbs because they are not being run at high current? Hoping the gurus will chime in here with their research. And as far as the t5 comment...we all know LEDs are way more efficient even if they lose intensity.

 

[mike007]

+ 1 Pappy

 

[Rikerbear]

Well unfortunately no data is provided in link or any of the highlighted bullets that I was able to see. BUT my translation of what was written was that LEDs driven at high current will drop efficiency of bulbs...
So my understanding is that all these Chinese or value fixtures with 1 watt LEDs that are driven at max are much less efficient which all the LED gurus have been saying. Hence the recommendation of using 3 watt Cree bulbs and running them at a lower percentage of power. So I guess the Crees are in fact more efficient and using the proper drivers there probably is little or no decline in efficiency and output of these bulbs because they are not being run at high current? Hoping the gurus will chime in here with their research. And as far as the t5 comment...we all know LEDs are way more efficient even if they lose intensity.

+1 Thanks Pappy

 

[ReefLEDLights]

Uh Duh

"I'm Shocked Simply Shocked To Find"... LEDs are dimmer when they get hot!!!

[video=youtube;SjbPi00k_ME]http://www.youtube.com/watch?v=SjbPi00k_ME[/video]

Thermal Management is Key to a well done DIY or Factory Fixture.

If you want efficiency walk away from any LED Fixture that is hot...AKA EBay 1 and 2 watt imports...And any other LED Fixture that is hot!!!

Slightly warm is OK say 90 Degrees

The Current (Excuse the Pun) Generation of 5 watt LEDs are a leap away from MH and chillers.

The Next Gen Is almost ready...

We are in the fifth generation of LEDs

Bill