The tubine has a built in generator that powers the LED light bulb. You don't need any special fiber optic source. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies.The item "Sirona T3 Racer Midwest Dental High Speed Handpiece LED Fiber Optic Germany" is in sale since Tuesday, May 19, 2015. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical, Lab & Caregiving Furniture\Other Medical, Lab & Caregiving Furniture". The seller is "calidentalsupply" and is located in Los Angeles, California. This item can be shipped worldwide.