I did some testing of light output with a calibrated luxometer, when I convert and measure as specified in the documentation I can find, it appears that at 700mA I get 1399 Lumens output. This tally's with the Cree documentation which says minimum light output for XP-E is 114 lm/watt which gives 1444 lm. At 85% eff for the lens, minimum output calcs to 1227 lumens.
All I know at the moment is it is bloody bright, and when you pull the cable out of the lights in a tight, muddy track, in the dark, at a new moon... you fall in the mud and scratch the new bike.
Crank it to full power! 700mA!
Nic, I like it.
well done.
Bernd
Yeah, yeah... let's see some proper beam shots out on the trail. Ok - or at least in your local park!
I find by the time I'm 50mm away from the tree/ground it too late
BTW the lights look great.
I did some testing of light output with a calibrated luxometer, when I convert and measure as specified in the documentation I can find, it appears that at 700mA I get 1399 Lumens output. This tally's with the Cree documentation which says minimum light output for XP-E is 114 lm/watt which gives 1444 lm. At 85% eff for the lens, minimum output calcs to 1227 lumens.
All I know at the moment is it is bloody bright, and when you pull the cable out of the lights in a tight, muddy track, in the dark, at a new moon... you fall in the mud and scratch the new bike.
That's a magnificent effort!