Without being scientific it does appear to have more throw than a LH351D but with the dome on I don’t think anyone would consider this a thrower. Not sure how it performs dedomed and I think thus far only gchart and I have even tried them in a flashlight.
I have a C8F with 3x Luxeon V and when I compare it next to a LH351D of the same type there isn’t a huge difference in the overall beam. It’s a more intense hotspot but not by a huge amount.
If I’ve got time tonight I’ll try getting side-by-side numbers with the same flashlight setup using Luxeon V2, LH351D, XP-L, and XP-L2. I’ll see what else I can scare up, maybe a XP-G2, XP-G3, SST-20, XP-L HI. I’m pretty sure I’ve got all of those on hand, it’s just how much time I’ve got to swap in and out a bunch of different LEDs.
Here’s a mechanical comparison of the domes of the SST-20 and Luxeon V2. SST-20 is quite a bit smaller in all dimensions and LH351D is slightly larger in all dimensions.
Ok… here’s some data points. I can’t say that these will be consistent with what others may gather, but they should provide a fair comparison against each other since they all came from the same flashlight, same battery, same physical measuring setup, etc.
All tests were done with a Convoy S2 (not S2+) with a smooth reflector, 3.08A Qlite driver, and a freshly charged Samsung 30Q:
I was pretty shocked by that, I bought 10 of the SST-20 a while back when they were first announced and all that was available was cool white. But I strongly dislike cool white, so I never ended up putting them in anything. I’ve heard the chatter and knew they could throw, but I just didn’t expect the lux to be that much higher, even over the XP-L HI (with the SST-20 still having it’s dome on).
Maybe this emitter is better suited for aspheric and recoil lights. I think I read somewhere in djozz's thread that something like 90% of the output is goes forward. Wouldn't that mean less light hitting the reflector (in a reflector light) which would result in less throw?
Thank you Agro. When I saw how bright the spill was on the V2 in Post 6, I thought of that comment I read and got excited. Oh well, c'est la vie. Thank you for the response.
Just had a chance to air wire one of these up to see how I like the tint. And like you I am very impressed. I don’t have many host but I am wan’t to try this.
I think its gonna go into a Wowtac A2 headlamp. It currently has something around 5000k.
I’m enjoying these LEDs, especially for the price on that Arrow sale.
I should have picked up a 3000K to try, but I feel that might be little too warm for me. I put a 4000K in a Lumintop EDC01 and it’s a great little light. I put some 5000K in a Wuben E05 and Convoy S2.