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. Self Power E generator 3.The item "W&H Synea TK-98L Self Power E generator 5 LED Dental High Speed Handpiece 4 Hole" is in sale since Monday, April 24, 2017. This item is in the category "Business & Industrial\Healthcare, Lab & Life Science\Dental Equipment\Handpieces".
The seller is "january-dent" and is located in Zhengzhou, Henan. This item can be shipped worldwide.