This is not a good choice. The current consumption from each battery is 15A (in turbo). This is the voltage drop with this load compared to Samsung 30Q.
It seems a good choice for his requirements which is longer, but slightly lower turbo output which heats up slower. Plus it has extra capacity to run longer at lower levels. Maybe he wants this?
With GA’s, the load on each battery will probably be less than 15A each.
I don’t think GA’s will hurt anything as long as you don’t care about measuring the max turbo lumens.
Yes, I agree it’s not a good choice if I’m bench racing for lumens. I’m curious how much lower the output would be with the GA’s. I’d love to see an output graph of with the GA to see what is given up in Turbo (which I’d rarely use aside from wowing people) in exchange for longer runtime at lower levels.
If you aren’t wowing people with turbo then don’t worry about using a GA. In reality I think the light is capable of pulling 15A per cell like komeko says but in my testing my light is only hitting 10K lumens briefly with a 30Q. So 15A is pretty much the upper limit with a 30Q using this light.
I did this for science but the results are so similar i’m not sure it’s helpful to anyone. The hotspot appears to be ever so slightly less defined and edge of spill slightly cleaner. I thought the efficiency might go up but it appears to produce more or less the same lumens with both optics. I still think XP-L HI might benefit from this larger LED opening but i’m only going to try 219B.
Datasheet has support for other small-ish die emitters: XPG2/3, 219B/C, Oslon Square, E21A, LH351B
I was fortunate enough to stock up then, and I have about six lights using them. I still have some to spare for future projects, but I still get weepy thinking about my favorite LED being discontinued.
I think I’ll turn on my 219B sw45k Emisar D4 to cheer myself up.
I got my emisar d18vn with the osram white 2 mm… this light is perfect. No green tint at lower mode… I got 14740 lumen @ turn on. Amazing! Throw is 140Kcd.
When I first got the Emisar D18, I didn't have enough high-drain button-top 18650s to test the D18 with, so I used Sanyo NCR18650GA, which fortunately worked on the D18.
I have since then been able to get a few button-top VTC6, and re-tested the D18.
On an uncalibrated lux meter and doing a simple ceiling bounce test (with fully-charged 3x GA and fully-charged 3x button-top VTC6), the button-top VTC6 has higher lux reading.
Below are video beamshots of the D18 (but taken on different nights), using 3x raised-flat-top NCR18650GA, and 3x button-top VTC6