638nm 600mW orange-red waterproof laser pointer diving adventure aiming laser pointer

Parameters Laser Shape: Rectangle Wavelength:635nm 638nm Output Power:400mw-600mW Working Voltage:3.7V Start voltage:2.5V Working Current:<500mha Operating temperature:-10 ℃~ 30 ℃ Safety level:ClassⅢb Beam pattern:Continuous line Shape Focusable:Yes Waterproof:Yes Electric Control:ACC Warm-up time:None Dimensions:φ25.5 * 142mm Battery:1x 18650 Lithium battery（ included） The switch has three gears, when you press the switch, it will switch between 300mw-400mw 500mW-600mW and the on-off Features The visibility of 638nm orange red laser is much stronger than 658nm Red laser at the same power,because every 5nm lower the laser is, the visibility is increased by 25%,which means 638nm laser’s visibility is increased by 100% compared with 658nm laser.Stronger visibility means the higher brightnessOur laser pointer is very powerful, so don’t see it for long time with bare eyes.Please storage the laser in dry environment and keep it away from children.Please avoid direct eye exposure to the laser when use it as a pure laser pointer.