Machines: laser engraving machines such as SCULPFUN, ATOMSTACK, ORTUR, ELEKSMAKER, or DIY 3D printers, CNC machine tools. Engraving Materials: Paper, cardboard, plastic, white, PCB board, alumina, stainless steel, black metal, ceramic Cutting Material: Thin board, acrylic board, cardboard, non-woven fabric, bamboo, some plastic board; Laser Output Power: 5.5-6W (light energy) Laser Wave Length 455±5nm Laser Type and Fixed Focus Method: fixed focus laser, fixed focus through 20mm measuring column Laser Protective Cover: The ring-shaped violet filter cover protects the user,s eyes and prevents animals, etc. from contacting the laser spot. Laser Shell Material: Aluminum alloy Packing Size: 11*12*18cm Package Weight: 0.5kg Laser Circuit Board Parameters: Circuit Board Size: 40*40mm Circuit Board:12V/PWM modulation board Input voltage: 12V Max Input of laser module:12V 3A Wire Rod:HY2.0, 3Pin terminal (3-core cable, A: PWM +, B: GND, C: VCC ). Fan:12V 0.15A 4020 fan Fan speed: 10000 rpm Operating Temperature: -20 °C to 70 °C Precautions: For detailed machine instructions, please refer to the manual for parameter settings. Before installing and using the laser, you should understand the adaptability and the maximum input voltage and current to avoid damage to the laser. Do not touch the laser with your hands, otherwise you may burn your hands. Please avoid b impact on the machine. It is forbidden for children under 14 years old to use this product. Children over 14 years old need adult supervision. Do not apply the laser directly to any specular reflection object, which may cause injury to the operator or burn the laser. Package List: Laser head*1 Multi-function Structural Connection Device *1 20mm Measuring Column*1 Screws Tool Kit*1