Laser Engraver Machine Wood Marking Cutting Tool. Features: Designed for Laser Engraver, 3D Printer, CNC Mill, Arduino Project. 15W Optical Power Output, 4mm Plywood from 1 Pass(speed 200), 3mm Black Acrylic Board from 1 Pass, Able to Engrave Stainless Steel, Needn't Focus Adjustment. More Safety, Built-in Protective Glass to Protect Eyes Even Without Wearing Protective Glasses, the Operation is More Comfortable. More Quiet, Intelligent Drive Adjust the Cooling Fan Speed According Laser Temperature. Slid Able Mounting Fixture is Provided for Easy Adjustment of Focus. Specifications: Certification: CE Model Number: 40W Heat Sink Material Aircraft Aluminum +Blue Shell Luminous Color Blue Cooling Mode Temperature Sensor Intelligent Control + 10000 Rpm 40mm Cooling Fan Can Engrave MDF/Balsa/Paper/Wood/Fabric/Plastic/Leather/Plywood/Foam Paper/Anodized Aluminum/Stone/Ceramics/ Stainless Steel Can Not Engrave Metal/Glass/Stone/Ceramics/PCB/Reflective Material/ Transparent Material . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.