Features: This 20W Laser module is suitable for two trees laser engraver TS2 series such as TS2-10. Eye Protection Design. The panoramic filter glass protective cover plays a very good role in protecting your eyes, filtering 97% of the ultraviolet light, you can also watch laser engraving without wear goggles. Reduce the cost of your goggles and the inconvenience of wearing goggles. 4-Beam compression technology, the most powerful 20W blue laser head on the market. Able to cut through 15mm plywood by 1 pass, Cut through 8mm black acrylic by 1 pass and even cut the 0.08mm thick steel sheet. Support professional air assist to get clean-cut edges, improve cutting performance Excellent heat dissipation design, keep stable cutting ability and extend service life Specification: Brand: TWOTREES Name: 20W Laser Module For TS2 Wavelength: 450nm Focus Length: 40mm Optical Power: 20W (19-21) Electrical Power: 96W Product Size: 135x59x58mm Product Weight: 560G Package Weight: 1520g/3.3lb Package Size: 245x145x90mm/9.6x5.7x3.5in Packing List: 1 x Laser Module