18*100mm Waterproof 650nm 50mW 100mW Red Line Laser Module

wavelength: 650-660nm
output: 50mw 100mw
divergence : 0.1-2mrad
bent rate: 1.5mm @ 5m
working voltage: DC 5v
class iiib
degree: 110 degree
working temperature: -10~+35 centigrade
dot diameter: <25mm at 10 meters
Duty cycle: 2 hours on, 5 minutes off
size: 18mm×100mm

it is waterproof, so that you can use it outside of the house in rainy time. you can also use it under water less than 3m