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.
Convoy M21C (SST40 neutral-white) beamshot
Convoy M21C (XHP70.2 neutral-white) beamshot
