Overview: Main Function: Green & Red Laser Pointer Output Power: Max 50m W Wavelength: 532nm (green), 650nm (red) Laser Classification: Class IIIB Operating Temperature: 0 to 40 C Storage Temperature: -10 to 50 C Output Type: Fixed focus, continuous output Working time: over 8, 000 hours Power: LR1x 2 batteries (not included) Circuit control: APC CIRCUIT Working Voltage:DC=3.2V Trigger Voltage:DC=2.8V Dimensions: L: 150 x Diameter: 15 (mm) Specification:150 (length) X 15 (dameter) MM