IsaacHayes
Flashlight Enthusiast
Re: The Explorer! 6 x Red/White Luxeons. 18watt li
Red/RO/Amber are a different chemistry than the Blue/green/white/etc. The efficiency drops with heat, not nessasaraly with current. The blue/white will tolerate the heat and still get brighter with increased power, but if the red family gets too warm then they will dim down quite fast. You can observe this with even 5mm leds too. I applied too much power to a 10mm orange 12kmcd once and watched after 1-2secs it got really dim really quick with only a mild overdrive.
As far as the new luxeons, I'm talking about the square packaged new ones with 4 leads. They said they will be avalible in 7 colors and white! I would assume the power would be around 3w for the red family, and perhaps more or the same for the blue/green/white family. I think increased efficiency and heat tolerance are the main improvements.
Red/RO/Amber are a different chemistry than the Blue/green/white/etc. The efficiency drops with heat, not nessasaraly with current. The blue/white will tolerate the heat and still get brighter with increased power, but if the red family gets too warm then they will dim down quite fast. You can observe this with even 5mm leds too. I applied too much power to a 10mm orange 12kmcd once and watched after 1-2secs it got really dim really quick with only a mild overdrive.
As far as the new luxeons, I'm talking about the square packaged new ones with 4 leads. They said they will be avalible in 7 colors and white! I would assume the power would be around 3w for the red family, and perhaps more or the same for the blue/green/white family. I think increased efficiency and heat tolerance are the main improvements.
