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Like the title says i have 2 (two) 18650 batts. I put them in the sleds once. I bought them for use in an electronic cigarette but they arent suitable for that application (so i learn after i bought them). They are perfectly good batteries that need a new home! SALE PRICE: I bought them for...

I have a set of 18650's that i bought for an electronic cigarette but they arent suitable for them. Just realized i still had an account here so i figured that i could sell them here! Theyre these batts (not bought from that site): AW 18650 Protected 2900 mAh Rechargeable Lithium Battery I...

Ive been lurking gas lasers for awhile just learning and understanding. I have some questions about gas laz's. Why choose gas? Whats the advantage over diode lasers? Why spend 300+ currency on a less than 40mw laser? And lastly, why are they so expensive? Thanks guys! :beer:

Hey y'all. I've been looking for a battery holder for an 18650 li-ion battery, but the one I found takes 3 weeks to ship. Anyone know of a better source? eBay or a member here?

Just got my 1.3 watt 445nm build together and noticed this: :wtf: Its focused to the smallest spot possible, but it has these huge whiskers. This is at maybe 6ft range and the spread is of 1.5ft radius (each). M140 diode through a 405 G-2 lens. Ideas?

I am building a 445nm one watt laser. I have every significant and insignificant detail down. Im going to be using a Flex driver for my laser. If electrical language was spanish all i could say was hello, goodbye, and wheres the bathroom. So my question lies herein. I want one watt of output...

Im building a 1watt 445nm laser. I really want a nice thin strong beam visible many, many, many, many miles. My housing is quite flexible so any modules with good glass are welcome. Using your guys terms i think im trying for the lowest "Divergence". Correct me if i'm wrong. Things like burning...

I love lasers. They just brighten my day [bad pun?]. Anyways. I have purchased a few lasers with differing powers. I have a 5mw, 20mw, and 250mw laser. I have decided that these aren't powerful enough. So here we go. I have always bought my lasers from stores or companies and never made one...