best efficency amperage per LED

[eveningniteshade]

hi experts,

Rather than maximum brightness i'm looking for maximum efficiency, especially with Q5 crees. But i'd be interested with maximum efficiency with all other LED's as well.

I would assume there is a chart that shows the efficiences of various LED's, would someone be able to link me to these charts please. I"M new to this forum, most people here seem interested in maximum brightness, i'm interested in maximum efficiencty.

thanks.

 

[LukeA]

Higher bin LEDs are brighter because they are more efficient.

Max efficiency in a white power LED occurs at 20-40mA IIRC.

 

[Marduke]

http://www.candlepowerforums.com/vb/showthread.php?t=89607

A Cree tops out at about 20mA.

The R2 for example:
http://www.candlepowerforums.com/vb/showthread.php?p=2412997#post2412997

 

[WadeF]

I've seen 20mA as well on the charts. Many of the Fenix lights, like a P2D, run the Cree around 20-25mA on low, so you get maximum efficiency.