Laser Pointer Purple Industrial 405nm 20mW Violet/Purple Laser Line Module 13x42mm 3-5.5VDC Laser Purple 405nm 150mW Violet Purple Blue Laser Diode Dot Module 12V DC with TTL and Cooling Fan ... Focusable 980nm 30mw Infrared IR Laser Diode Dot Module 18x45mm 5VDC w... We will not take any responsibility for the incorrect use. Working Method The best working method is 30 minuts conntinuously working and 5 minutes resting. Laser Diodes - Laser 2000 Otherwise the laser may be burnt. Mny reviewers indicte tht Fusion Cool 2275 LF performs exceptionlly well in vrious settings, including CNC mills, mnul lthes, nd bnd sws
