Features& Specification Outside:26.5*118MM Laser wavelength:532 nm±5 Optical power:10-150mW Class IIIB point shape:Circle Spot diameter at 15metre:20mm±1mm Beam Roundness: >90% Beam radiation angle:1.5-2.5mrad Operating current:180mA<I<650mA WorkingVoltage:DC=3.0V TriggerVoltage: DC=2.6V Operating temperature:+15Cto+30C20-80RH Storage temperature: -10Cto+50C/93-95RH Power Supply:1*CR123A Li-on battery Package:Black Glove Notes: Never expose your eyes or anyone else to the laser beam