30W Focusable Laser Module 10pcs Universal Laser Engraving Module Kit

Features:
- Designed for laser engraver machine, laser cutter, 3D printer, CNC millling, replacement for arduino project.
- 2 in 1 focus, adjustable lens and fixed focal length in one module.
- 7.5W blue light laser, suitable for engraving and cutting.
- More Safety, built-in protective glass can effectively exclude the direct rays of the laser by 90%.
- Modified laser air assist, avoid smoke damage to the lens.
- More quiet, intelligent drive adjust the cooling fan speed according laser temperature.
- Easy to use. Digital PWM wave pulse signal generator adjustable frequency duty-cycle board replacement for NEJE laser module.
- Sliding slot is provided for easy adjustment of focus.
- Engrave a wide range of soft materials: MDF/Balsa/Paper/Wood/Fabric/Plastic/Leather/Plywood/Foam Paper/Anodized Aluminum.
Note:
1. Please wear laser goggles during usage and avoid touching the laser directly with your eyes and skin!
2. Do not engrave mirror objects! Pay attention to fire! Pay attention to pets when working！
3. Smoke will be generated when burned, please pay attention to smoke exhaust indoors.
4. The warranty period of laser module is one year. If you have any quality problem(Except individual situation like using the laser module more than 30 minutes per time and cause the damage ), please feel free to ask our customer service for a help.
5. If your laser module has any problem, please DO NOT dismantle it without our permission. It will destroy the laser module.
6. If you have any quality problem about the machine, please feel free to contact us. Many operative problem can be solved according to your video and problem description.
8. It can also be compatible with other cnc equipment, such as 3D printers, CNC Milling, etc., but you need to master a certain knowledge of pwm waveform control.
9. Can Engrave: MDF/Balsa/Paper/Wood/Fabric/Plastic/Leather/Plywood/Foam Paper/Anodized Aluminum
10. Can Not Engrave: Metal/Glass/Stone/Ceramics/PCB/Stainless Steel/Reflective Material/ Transparent Material