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    If you own a handheld laser from laserbtb maybe you can help me please

    Hi so I want to buy this laser: It's a 405nm 100mW. HL 405,445,450nm Do you think(or actually know) if this will work with a single 18650? I already ask them but I got no answer. But since they are reliable right? I might aswell ask in here and just buy it. Thanks
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    What will happen if i do this?

    Hi! First of all I'm a noob. So i tough that all lasers worked with 18650 batteries..... so i was thinking since I don't see a difference between 18650 and 16340(other than size) what will happen if I put 1 18650 battery in one laser that works with 2 16340? will it work? his "life" will be...
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    Need help to get some things clear

    Hi! first of all until now I only had low power/cheap lasers but now i want to upgrade to something more powerful. wavelength This is the thing where i have no clue, i think most popular values are 405nm and 650nm. But what really is this? more high value equals more power or less value more...


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