Astronomy Laser

Size:?40*220MM
Wavelength?532 nm
Beam Range:<5000 meters
Safe Class:Class?B
Dot shape: Dot——Circle
Tolerance of power output:<15%
Dot Size:10 meters<?18MM
Workig Voltage?DC=4.2V
Trigger Voltage: DC=3.6V
Pre-heat duration?No
working Temperature?+20???30?
Storage Temperature?-10???40?
Pwer Supply:One pcs 18650 rechargeable (3.7V?2400mAh)Color: Electro-plate Black