Thanks for the advice, but none of those things helped. Appreciated, though.
Quote from: Lynn LeFey on December 13, 2017, 05:04:08 AMThanks for the advice, but none of those things helped. Appreciated, though. well your only out $2
Well... smurf.I started doing a runtime test on this thing. I got three of them and was going to run one and test its output versus a control.And it died after about 40 minutes. I don't mean 'ran out of battery'. I mean 'completely ceased to function'. Something in the emitter. The tail click rear button still works when put on another light.I tried it again with another light and ran the battery down until the light was putting out under 5 lumens or so (54 minutes) with no problem, but a 1 in 3 failure rate isn't all that encouraging.
Which cree emitter is it in your light ?
Quote from: m47mu74nt on December 13, 2017, 08:27:23 AMWhich cree emitter is it in your light ?Does Cree XPE-Q5 sound like a real answer? It's what's written in the item description. I know nothing about Cree emitters.
Q5 is the bin grade. Higher grades have higher max output, and Q5 is average, outputting between 107 and 114 lumens when given 350 mA. The highest grade, R4, gives between 130 and 139 lumens at the same current, and the lowest grade only 56-62 lumens at 350 mAh.
Quote from: Pablo O'Brien on December 31, 2017, 08:51:50 PMQ5 is the bin grade. Higher grades have higher max output, and Q5 is average, outputting between 107 and 114 lumens when given 350 mA. The highest grade, R4, gives between 130 and 139 lumens at the same current, and the lowest grade only 56-62 lumens at 350 mAh. I didn't find any info of production yields though, but I imagine that they make way more lower grade bins (which are failed higher grades?) and that the emitter price is closely linked to it.
Even these lights, which I guess are pretty crappy by many standards, are STILL amazingly bright.
Would you recommend these as freebe gifts over the fauxtons?