1100% and high quality 2This product is laser engraving machine special module, features external drive, real Output Optical Power , stable performance 3Laser module with constant-current driver board to ensure stable output optical power,low heat no external driver board,Very Easy to use; 4Suitable for industrial laser engraving machine equipment usage/DIY stage laser lighting/DIY lighting laboratory 5Heat dissipation adopts of forced air cooling, with long continuous working times Features:100% and high quality. This product is laser engraving machine special module, features external drive, real Output Optical Power , stable performance. Laser module with constant-current driver board to ensure stable output optical power,low heat no external driver board,Very Easy to use. Suitable for industrial laser engraving machine equipment usage/DIY stage laser lighting/DIY lightinglaboratory. Heat dissipation adopts of forced air cooling, with long continuous working times. Specification:Power adapter voltage: 100-240 VACPlug type: US plugLaser wavelength: 445nm(blue light)Spot type: dot (adjustable focus)Light output power: 500mWDrive mode: external ACC constant current driveHeat dissipation: forced air coolingWorking voltage: 12V DCPower supply interface :2*2.54Control interface: 2*2.54(TTL control switch, PWM control power)Case material: anodic black on aluminum surfaceModule material: copperCollimating lens: optical glass coatingWeight: Approx.296g/10.4ozPackage list:1 x Laser Module 1 x US Power Adapter 1 x MX37 Cable Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.