Date Added: 2017-06-09 00:00:00 by J***s
I purchased this for an extra bright night pointer for astronomy outreach.
When it arrived, the battery which is around 4000-4500 mAh was defective. Oh well, shopping online, I upgraded to a 6000mAh for very little cash. I tested this laser with the fully charged new battery and at 4 inches, it was smoking black electrical tape, but after 15-20 seconds, didn't burn through. I next tried a shopping receipt, it started to make a black mark after a bit, no burn through. I tried a match at 2-3 inches but it would not ignite. I think for that you need a 5000mw laser but for what I am doing, it is extremely bright and I am very happy. Good construction, turn the locking key while gently wiggling it.