(LS D80 reflector in the test rig)
I dressed up my reflector test rig tonight (I'm allowed 2 square meter of permanent hobby space in the house, so part of my rigs must be dismantled after each use) and tested the X6 and D80 reflector. Because I wanted to know for these two flashlights in the same category, separated from all other parameters, which reflector in principle was the better thrower: the odds were at the D80 reflector: larger diameter, smoother surface finish. For details of the method, see my reflector test thread (I will add these data to that thread too).
I'm getting quite a good feeling for finding the best focus for each reflector, so with more reflectors tested the numbers are getting pretty accurate. The test leds are a dedomed XP-E2 and domed XM-L2, both cool white, both constant output at 350mA. Throw is measured at 7 meters, lux numbers were calculated back to kcd. Here you go:
| reflector | XP-E2 dedomed at 350mA, 120 lumen |
XM-L2 at 350mA, 180 lumen |
remarks |
| BLF X6 reflector | 21.2 kcd | 3.79 kcd | diameter=29mm |
| Lucky Sun D80 reflector | 29.4 kcd | 4.71 kcd | diameter=33mm |
So indeed the D80 reflector is the better thrower, for the dedomed XP-E2 the throw is 39% more, for the XM-L2 the throw is 24% more. The actual throw from the whole flashlight is dependent on many more things, I just wanted to single out the reflector.