RUSTU RUSTU-3 5mw Purple Light Laser Pen - Black + Silver (2.4~3V / 2 x AAA Included)
Color Black + Silver Brand RUSTU Model RUSTU-3 Quantity 1 Piece Material Aluminum + copper Laser Power 5 dB/mW Wave Length 405 nm Laser Color OthersPurple light Excitation Mode Optical Pump Working mode Continuous laser Working Voltage 2.4-3 V Spot Mode (Spot size) 1.0mm Battery 2 x AAA batteries included Packing List 1 x Laser pen 2 x AAA batteries 1 x English user manual