Model 850 Quantity 1 Color Black Material Harden aluminum Laser color Purple Laser Power 5 mW Wave Length 405 nm Excitation Mode Optical Pump Working Mode Continuous laser Working Voltage 3.0~3.7 V Spot Mode (Spot size) Max spot diameter: Battery Configuration 1 x CR123 / 16340 Functions Fixed focus; Widely used in various laser pointing teaching demonstration with a laser light source laser positioning teaching command Architecture Exhibition control instructions etc. Packing List 1 x Laser pointer 1 x 100~240V US plug power adapter 1 x 16340 1200mAh battery 1 x Strap