Product parameter:Wavelength: 650nm Output power: 5mW Supply voltage: 5V Working current: 20 Spot mode: Dot/Line/Cross Optical part: pvc concentration lens + columnar glass note lens Material: aviation aluminum Operating temperature: ± 50 ℃ Lens material: pvc + glass Dimensions: 12mm * 55mm (adjustable) Best working distance: 1-4 meters Output band: viewed mild Working life: 8000 hoursPackage1x 650nm 5mw 12x55mm Laser diode Module 1pc 5V Adapter 1pc 360 diploma adjustable Heatsink Holder