Is the consensus still the same that the XP-L's beam is nearly identical to the XM-L2's? Anyone every do comparative beamshots (same or at least similar hosts and drive current)?
-Garry
yep, i just tested, i put my c8 head on my c5 xp-l and the pattern is almost identical.
Ok, thanks for the report.
-Garry
no problem
No triple XM 20 mm Noctogons. No 32 mm quad XM copper boards either so if you want multiple XM’s on copper then you have to use separate mcpcb’s. Lots of fun in a Micromag or S2. The selling point was never the die size but the substrate size.
Agreed. I’d also add that they’re slightly better in output (not enough to be really noticeable, though)… but in my experience the biggest benefit is they are super easy to dedome. I have experienced very little green shift in the XP-Ls I’ve dedomed as well. Can’t say that for XM-L/XM-L2s. I dedome with gas. It takes longer, but it’s about as fool-proof/repeatable as it can get. Works great on XP-Ls.
I haven’t heard whether or not XP-L’s are plagued with the high Vf that the newer XM-L2s have. If not, that would be a pretty big positive as well.
Same. Dedoming an XP-L is much easier and gives better results. That and the triple boards are the only reason I use them. In my experience they do have the same high Vf of the XM-L2s; I think it comes with having only 2 bond wires instead of 3.
EDT: Just realized we’re replying to a post from August 2014… oops
I started out using them for that reason, but have shifted to mostly using them for just about every build because of the ease/repeatability of dedoming and the conistently good tint of dedomed XP-L 2A’s
That makes sense. I haven’t done as much testing on them as I probably should. I’m a little surprised there hasn’t been a big shift among us to move to 4.35V batteries. Seems like that would alleviate the issue somewhat. But then… I’ve got like 20+ 18650s and 26650s and none of them are 4.35V, so maybe most folks are like me and just using what they’ve already got. Budget and all that.
This would be interesting to know. I know originally the XP-L had higher vF than the XM-L2's, but perhaps the new batches of XM-L2's are higher than the XP-L's. I guess someone could search around and post comparisons.
-Garry
I think the main reason is because there aren’t any hi-drain options that do 4.35v right now. None of the 4.35v cells I have seen perform better than (or even as good as) a Samsung 25R or similar. Another factor is that few chargers can do 4.35v anyways.
I have some on order myself, but I’m mostly planning on using them in lights that have a built in charger, as extra protection from overcharging.
Ok, did a little digging and found RaceR86's spreadsheet of tests. Seems XM-L2 and XP-L are nearly identical (which also matches Crees stated specs found in RaceR86's thread).
-Garry
Right on Pilotdog!
Yeah, the 4.35’s are a big disappointment, they fall off of the higher voltage back into 4.1xx ranges just as quick as the good 4.20 batteries without giving the better amperage.
Having to use a different charger and just the added wait for the stupid things to finish charging is not worth it at this point.
I also noticed on a couple lights that the added voltage shifts the tint but does not really seem to make the LED put out more lumens.
YMMV
Thanks,
Keith
Anybody got some beam shots of the two to compare or even just lumen/lux figures?
I’ve still got a 1st version XinTD, I’d like to buy a new one but not sure which way to go, XML or XPL?