- Sep 20, 2013
No, but, I can tell you that all that do use 16340 batteries which are on the edge of giving you what is needed for driving them. You still really do get what you pay for. You pay extra for heat sinking and for larger battery capacity. I only have one laser that is a 445nm M140 build that came from China and I paid $20.00 for shipping it to me so that I could review it. All the others I built myself. At least a dozen M140 lasers.