Feature:Specification:Professional laser module, easy to install, with lower loss, provides 450nm wavelength, for efficient, precise engraving and cutting of plastic, wood, paper and so on, suitable for a wide range of engraving machine.Features:High Quality Material:laser module, features solid High quality aluminium alloy shell, high engraving speed, low power loss, stability, long lifetime.Efficient Work:with adjustable focal length (5.5W/ 10W/ 20W) or fixed focal length (30W/ 40W), flexible and easy to use, ensures fast, clear engraving with high efficiency, high precision.Powerful Ability:it can engrave plastic, wood, leather, rubber, acrylic and others, or cut wood and acrylic (the wattage determines its ability).Easy Assembly:small and compact laser module body, has 28cm long line, comes with nuts, convenient and simple to install on the machine.Wide Application:it works with laser cutting machine, laser engraving machine, CNC engraver, DIY laser and more, supports most engraving software.Specifications:Laser Power: 5.5W/ 10W/ 20W/ 30W/ 40W (Optional)--Adjustable Focal Length: 5.5W/ 10W/ 20W--Fixed Focal Length: 30WMaterial: Aluminium Alloy + Electronic ComponentsMain Color: RedWave Length: 450nmInput Voltage: 12VOutput: Continuous (CW)Operating Temperature: 0~70Storage Temperature: -40~80Item Size: 4*4*11cm / 1.57*1.57*4.33inPackage Weight: 235g / 8.28ozPackage Size: 17*13*5cm / 6.69*5.11*1.96inNote:Laser module only, others in pictures are not included.Please do not use it without safety glasses.Due to manual measurement, there may be deviation.Due to lighting or other reasons, it may slightly differ from pictures.Packing List:1 * Laser Module3 * Screw3 * WasherPackage List:1 * Laser Module3 * Screw3 * Washer