Mini Review Big XM-L Reflector Zhi Jun JD-9668

[Pok]

@ergotelis

Well the best way to measure efficiency, by the time you are going to swap a U2 led, is to cut the wire on the led and measure there the current that goes to the led with a multimeter, to be sure.

Yes, I measured like your said for many time,

But I disappointed this driver, So I din't test more.

[Richie086]

The formula below I used, I thought this calculates the actual total current at the tail cap or input voltage reading from a DMM at the tailcap, which is .920mAh on HIGH mode? But I didn't subtract the 15% for losses from the 2.23a number, which I mentioned above. But even though the batteries are rated at 2000mAh, they could still be higher or lower than what's printed on them.

Was this the correct formula for this light or should I have calculated it another way? Thanks

.920mA * 8v = 7.36

7.36/3.3 = 2.23a

[JohnnyMac]

@Pok

FYI

It's a hollow pill , not a massive pill.

I forgot to take pic inside the pill

What a shame. So much potential wasted with this light. Crazy over priced for what you get, IMO.

[Pok]

@Richie086

The formula below I used, I thought this calculates the actual total current at the tail cap or input voltage reading from a DMM at the tailcap, which is .920mAh on HIGH mode? But I didn't subtract the 15% for losses from the 2.23a number, which I mentioned above. But even though the batteries are rated at 2000mAh, they could still be higher or lower than what's printed on them.

Was this the correct formula for this light or should I have calculated it another way? Thanks

.920mA * 8v = 7.36

7.36/3.3 = 2.23a

@3A about 3.2-3.5V

@2A about 2.9-3.2V