Endurance lasers provide DPSS laser add-ons and diode that turn any 3D printer or CNC device into a strong laser cutting/engraving machine. Endurance 10 watt laser can work up to two to three days continuously, unlike many other Chinese lasers and engraving machines. This could be an extended lifetime of 10 000+ hours. The true optical power output is 10 watt (10000 mW). Endurance support the ultimate customer care in many languages. For more info; Endurance Lasers https://3dprinterbuy.com/product-category/endurance-lasers/ Endurance 4 WATT DPSS https://3dprinterbuy.com/product/4-watt-dpss-infrared-laser-metal-marking-and-engraving-head/ 10 watt DPSS infrared laser https://3dprinterbuy.com/product/10-watt-dpss-impulse-infrared-1064-laser-attachment/