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Assuming it's over water or something shoot some fireworks in that direction.

It really doesn't matter too much, some 18650s have a rating for how much power they can put out (max discharge rating I think), but I don't think that's ever really a problem. Diodes that need more power will call for 2 batteries so it doubles the voltage. Any 18650 should work, and even if...

Personally I prefer Jetlasers, they have been around longer and have almost always been great, I also personally prefer their host design. I also have a 900mW 520nm for sale in the BST section. I'm asking $300 but the price is negotiable, check it out :)

It's a custom build, takes 2x18350. It's 900mW and 520nm.

Diode is N520

Bump, make me an offer :)

I have a 900mW 520nm for sale, you won't tell the difference between 900mW and 1W. It was a custom build and won't just die on you like some cheap mass produced chinese lasers can.

There are 2 people selling 50mW units on the forum right now, check out the buy sell trade section. Otherwise, check out dragonlasers. Their lasers are made by cni I believe.

I have one for sale. Asking price is $300 but you can make me an offer. Check it out in the buy sell trade section.

For Sale Ophir 20C-A-1-Y Laser Power Meter Includes everything you see above. Can read from 1mW to 5000mW standalone or with datalogging via the laserbee software (included). Can read over 15000mW if you install a heatsink (cost's less than $10). Response time 0-95% 1 second faster than...

Not familiar with this at all just throwing this out there, could you use something like a fan controller for a pc? The one I have for mine even came with thermocouples. Granted it wasn't cheap but I know they make cheaper ones.

The one I bought from offroadfreak 6 months or so ago.

Do you know the laser can permanently damage your vision or even blind you faster than you can blink? Would you mess around with a loaded pistol with no safety on it?

Do you have safety goggles? Please make a post introducing yourself in the welcome section. Where did you get the laser from?

I advise you to buy a lighter for your cigarette lighting needs. Do you have safety goggles? Where are you from? By your lingo I assume the UK?

The Ophir meter I have for sale uses lasersbee software. Just fyi.

Personally I would just drop the kipkay altoids tin idea and just use a proper host. You will have a lot less trouble and more reliable laser that way.

I am selling my Ophir 20C power sensor and meter, it can read up to 18W heatsinked (maybe more) which can be done for less than $10-$20. And 4W otherwise. Response time is faster than most any other lpm you can get in the price range too (0.8 seconds to 95%). It can take readings stand alone...

I apologize as well, I assumed you got these in bulk from some cheap source and were just trying to make a quick buck. I might suggest if your going to do custom builds then do something a little more exciting than 1.2W 445nm. But that's just my two cents. Good luck with your sale.