1. high speed dental led integrated e-generator handpiece with quick coupling\n2. self-sufficient power system instead of external light source,self-illuminated, natural light\n3.iso 7785-1\n4. ce mark 0197\n\nits e-generator led dental handpiece has an internal power motor with air-driven which supplies led light to the tip of the handpiece. with quick coupling , it is easy to get autoclaved. 3-hole water spray system brings comfortable feeling to patient. also, its low noise can protect your hearing.\n