Item Type: Laser Module Laser Power: 5.5W Material: Aluminum alloy, brass, ABS Wavelength: 450nm Spot Shape: Point Accuracy: 0.3mm Input Voltage: 12V Working Temperature: 0~70 Service Life: 2000H Engravable Materials: Wood, bamboo, cardboard, plastic, leather, PCB board, alumina, non reflective plating and lacquered metal, nigrescent utility knife Cuttable Materials: Cardboard, non woven fabric, veneer, acrylic, some thin plastic sheets Interface Parameters: 3Pin(12V, GND, PWM) Package List 1 x Laser Head 1 x Power Cord 1 x Safety Glasses 1. Laser safety goggles must be worn when operating the laser head, and the laser beam must not be irradiated on the eyes of humans and animals during use.2. Do not use continuously for more than 60 minutes, otherwise will affect the life of the LD due to overheating. 1EXCELLENT LASER DIODES: The premium laser diodes in this module has reliability, high stability and high efficiency for excellent laser beam quality 2ADJUSTABLE FOCUS: The user can adjust the focus by rotating the laser head according to the working distance to find the best spot size, very flexible 3FAST HEAT DISSIPATION: Come with a large aluminum heatsink, cooling DC fan, and holes for increased air flow, all of which help dissipate heat quickly and efficiently for longer life 4SUPPORT ENGRAVABLE MATERIALS: Support for wood, bamboo, cardboard, plastic, leather, PCB board, aluminum oxide, non reflective plating and lacquered metal, nigrescent utility knife 5APPLICABLE CUTTING MATERIALS: CNC laser module is suitable for cutting cardboard, non woven fabric, veneer, acrylic, some thin plastic sheets