Dental 5 Shadowless Highlight LED Lights 5 Spray High Speed Handpiece TK-98L. Fit for W&H Style Air Turbine Ceramic Bearings Push Button. Order 10+ items, can customize other LOGO. You do not need a fiber optic source or any special kind of wiring or attachment for this handpiece. Just connect it to your handpiece hose, step on the pedal, and the light comes on automatically. There is a very small electric generator built inside the turbine which powers the LED light. The handpiece is very light, powerful, and quiet. Standard head, detachable turbine, health torque system. 5 LED : shadowless illumination of the treatment site with the Ring LED+ , 135°C autoclavable. Quintuple water spray, water vapor mixing, more ideal cooling effect. Rotation speed:320,000-380,000rpm. Air pressure:0.22-0.3Mpa. 4 hole, 135°C autoclavable. Head size:11.2513.45mm. Water flow:90(min/ml)-110(min/ml). The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. Or you may kindly give us some suggestions about that, we promise to do our best to help you! We guarantee new equipment other than accessories to be free from defects in workmanship and materials for a period of three months. At our company’s option, any part which upon our company’s examination proves defective. More than three months, do not provide free replacment. During the working time, we will reply you as soon as possible. We will try our best to help you to solve, thanks.