i opened mine too this both came from MT01 and MT02. freeme also had the same problem but with SC01 head spring.
re-soldered mine, also re-soldered them all around not one sided. There are few things that could contribute, the coating of the spring, Haikelite uses lead free solder or the solder is not flowed properly.
I will update this in main review.
What about Neutral white version?
I only found CW on BG
There is no MT02 NW, AFAIK.
I dont think NW is available for MT02. It is available for MT01.
At what distance do you do the test?
Using LX1330B meter at 12 feet distance I got 4300 lux, which converts to 57,525cd, so quite a bit less than what you got. This was with 3 fresh 30Q cells.
Tested at 4.8m. I’ll do the test again.
Well i did the test and came up at 2800 Lux @4.8m or 64512cd with slightly discharge LG HG2 so it is still within that area, try longer distance you could very well be measuring the hole in the hotspot
I got 73,800cd@3m with 3xMJ1 on GM1020.
OK. Thanks.
Does room lighting affect the results much? Does it have to be pitch black, etc?
I am not sure it will effect that much i measured mine with ambient light of around 2 Lux so not completely dark, since we are measuring in the thousand a few luxs would not hurt the result.
Little to no effect. The light is very intense, so the initial value of the lux meter from ambient lighting should be very low. Even then, you can still do the test, and deduct the initial value if you want to. So there is no need for the room to be absolutely dark.
Exactly. It’s only 2 lux, so percentage wise it’s negligible. Biggest possible error is insufficient distance and inaccurate lux meter.
Is there an easy way to check my meter’s accuracy?
You can compare your values with values you find in reviews. For example, a lot of reviews say Convoy L6 stock has lux value of about 70k lux. You can find a bunch of lux values for Haikelite lights as well.
Tested again, this time from a distance of 18 feet (about 5.5 meters): 59,298cd. This was with slightly discharged 30Q (4.07V).
BTW, I was walking around with it last night… with 3 cells loaded, coming in at over 1lb of weight, you can certainly feel its heft after some time. I do like the amount of output it provides, but it is never going to be my EDC. I had my Convoy S2+ in the other hand, and much prefer its size for EDC. I just ordered the new S2+ Desert Tan since it looks like it has a better balance between throw and flood, compared to my current S2+.
I think your light is okay dont get too overly concern over candela figures, yours is up there with my my MT02.
Yeah i notice that too the weight of it with 3 cells made the palm a bit tired/cramped using 2 cell does help a lot in the long walk, certainly not EDC-able as in Convoy S2+ but will surely fits inside your backpack or larger pocket, i would carry this in a bag not in the pants though.
I tried to remove the driver today.
I unscrewed the retaining ring, but the driver still doesn’t move. Any suggestions?
I have opened the light as well. The driver did not fall out by itself. I had to tap the head a couple of times and it came out; it was not glued or anything. I think you can also pry it out gently with something sharp.
OK, thanks.
So, all of a sudden my MT02 will not turn on. Nothing happens when I press the switch. Are these switches known to go bad? What can I check?
I don’t recall reading about bad switches on these lights. The driver retaining ring itself may be loose, so you don’t have a closed electrical circuit, and it’s not a switch problem. This is a common problem with flashlights including the MT03. If not, you can have a look inside by removing the driver retaining ring, and removing the driver to see if the wires to the switch are intact. I’d start with this first. Good luck.