All lasers use two 16340 or 16350 cells unless other specified.
The 638nm and 660nm red laser can be used with one 18650 but two 16350 is okay.
The buck driver convert the 2x3.7V into a lowered current draw than with 1x18650 battery.
*** Easter Promotion *** I am cleaning up my inventory. The 2 Watt 445nm lasers are in promotion.
The output is guaranteed 2Watt of higher. An Ophir LPM graph is included with each laser.
These promotion lasers will have a 9mm 445nm laserdiode with a G lens !!
Also the aluminum heatsink are used for this promotion lasers.
The price is only $150 and the offer is valid while stocks last