Laser Mini Dot Diode [Red Laser]-5V DC 5mW 650nm 6mm One Piece of new 650nm 5mW Laser Red Dot Module Red Copper Head Red Laser Diode Pointer Sight. A module can be used with Arduino, M bed, ARM or any other MCU Technical Specifications: Laser wavelength: 650nm (Red) Copper Head Diameter is 6mm Light power: <5mW Supply Voltage: 4.5VDC Operating Current: <40mA Working life: more than 2000 hours Spot mode: dot facula, continuous output Package Includes: 1 Piece- Laser Mini Dot Diode [Red Laser]-5V DC 5mW 650nm 6mm