Parameter: Wavelength: 670nm Power: 0.4mw Dimensions: 16*70mm Supply Voltage: DC 2.8V to 5.2V (can be customized) Working Current: ≤50mA Wire Length: 1.1M Divergent Point: Divergent word line: Working indoors up to 2.5 meters Advantage: 1. The outer casing is aerospace aluminum. Multi-layer insulating varnish is applied. It can fully dissipate heat/shock and resist anti-fall/anti-static. 2. The 670nm wavelength laser is pure red. The light is clear and bright and soft and not glare. 3. Red dot size / red line width adjustable from 0.4 mm to several centimeters to meet your different usage requirements 4. One word / cross lens angle from 5 degrees to 120 degrees optional Red line length how long you want 5. German imported laser diodes directly emit light. Stability is particularly high. It can be turned on 24 hours a day. 6. Intelligent driver board with imported ICs 2.8-5.2V ultra-wide range power supply (other voltages can be customized) 7. High temperature resistant Corrosion resistant DC plug wire Suitable for all-weather use 8. The red line is fine and uniform, and the collimation and stability are very high. Package: 1*Laser Head 1*Bracket 1* Power Supply