- beam color: red
Dimentsion: φ 14× 160mm
Output wavelength: 650nm
Output power: 5mW-200mW
Laser Type: Visible Laser Diode.
Can be seen not only the DOT in the mid-air it is also very good astronomy tool. With its sharp laser beam you can point the exact star you want.
It don't need warm-up even if in winter