650nm 5mW Red Laser Line Module Focus Adjustable Laser Head 5V Item Details: Red Laser Head Condition: New Feature: Output: red laser straightly(650nm) Size: approx. ¦µ12 x 35mm Cable lenth: about 135mm Working voltage: 3-5V Current: 40mA (Max) Application: 1. Sighting device for orientation 2. Laser test tools 3. Concentricity positioning 4. Medical equipment positioning 5. Production of signal equipment 6. Use for DIY or robots Package Included: 1 x Red Laser Head