No, he just means 18650s will fit in the light and that high drain is suggested/required. 30Q should be perfectly fine since they can handle 15A (and even 20A, but with significant voltage sag).
Now I understand why so many requested the OP reflector for the XHP70?
What LED would you recommend?.
I think the SST heats up much faster than the XHP70, so I assumed the XHP70 will throw and lasts longer. But I could be wrong.
Thank you for these tips. Could you possibly show pictures of exactly what part of the bezel/reflector opening you are speaking of here? I am not 100% sure what side of the reflector (top or bottom) you are suggesting to use permanent marker on… Sorry im new, and not too bright. Thank you, of you arent able to, no worries. i will do more research. Thanks again
Anyone know if there are major differences in performance with the xhp70.2 over the sst40? What would the difference be in throw, heat dissipation, and output/runtime?
XHP70.2 is higher output and more efficient (longer runtimes and less heat assuming same light output) but much floodier. Performance should be fairly similar to the Convoy M3, just likely with less thermal mass in the host.
Below are beamshots of the Convoy M21C with SST40 and M21C with XHP70.2
Flashlight at max brightness level. Distance to opposite building is around 150 meters or 400 feet.
The SST40 is a lot more focused than the XHP70.2.
In terms of total brightness, the XHP70.2 has more total brightness (but doesn't reach the "4000" lumens or so stated lumens -- I would estimate somewhere around 3000 lumens or so, max, based on guesstimated output by doing a ceiling bounce lux measurement test, while the SST40 will be around 2000 lumens or a bit less, again just guesstimating from ceiling bounce lux measurement).
I measure around 8-9 Amps tailcap current for the M21C XHP70.2 on max, while the SST40 was around 6 Amps tailcap current (ie. XHP70.2 produces more but floodier light, and consumes more power)
I think the M21C is big enough to dissipate heat at max level, although the driver has automatic temperature stepdown.