Vender 30W Laser Module Kit 5pcs Fixed Lens Laser Engraver Cutter Head Set with 445nm~450nm 7.5W Blue Laser Diode for CNC Router Engraving Machine Replacement for NEJE Master Series al mejor precio

30W Laser Module Kit 5pcs Fixed Lens Laser Engraver Cutter Head Set with 445nm~450nm 7.5W Blue Laser Diode for CNC Router Engraving Machine Replacement for NEJE Master Series The laser module Features 30W power input, 7.5W optical power output, 445nm~450nm wavelength, vision protection, modified laser air assist and high-speed cooling fan. Great for cutting and engraving various soft materials. Features: - Designed for laser engraver machine. Replacement for NEJE Master series. - 7.5W blue light diode laser, 30W module input, suitable for engraving and cutting. - Fixed lens design, not focusing lens, change the object height to change the focus distance. - Protective glass for more safer and comfortable operation, no need to wear goggles. - Modified laser air assist, avoid smoke damage to the lens, keep the optical power stable. - Quiet and intelligent drive adjusts the cooling fan speed according to the laser temperature. - 15000 rpm high speed cooling fan for more effective heat dissipation. - Built with heat-removing silicone grease for strict control of temperature. - Engrave a wide range of soft materials: MDF/Balsa/Paper/Wood/Fabric/Plastic/Leather/Plywood/Foam Paper/Anodized Aluminum.  Note: *Only works with Master series engraver. *12V3A power supply is required if your machine is 7W or 3500mW. *12V3A power supply and goggles are not included in the kit. *Can Not Engrave: Metal/Glass/Stone/Ceramics/PCB/Stainless Steel/Reflective Material/ Transparent Material  *Smoke will be generated when burned, please pay attention to smoke exhaust indoors.  *Please wear laser goggles during usage and avoid touching the laser directly with your eyes and skin!  Specifications: Material: Aviation aluminum, brass Laser Color: Blue Cooling Mode: Temperature sensor intelligent control + 15000 rpm cooling fan Module Input: 20-30W Optical Power Output: 7.5W (7500mW) Wavelength: 445-450nm Lens: Fixed Working Voltage: DC 12V3A Input Voltage：DC12V 3A Item Size: approx. 9*3*3cm / 3.54*1.18*1.18in Package Size: 16*11*6cm / 6.29*4.33*2.36in Package Weight: 400g / 14.1oz Packing List: 1 * 30W Laser Module 1 * Sliding Slot 1 * 4pin Cable 2 * Allen Wrench