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.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 "4 Hole LED Light Dental High Speed German Handpiece Germany Straussman Optic" is in sale since Friday, May 17, 2013. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Handpieces & Instruments\Dental Handpiece Control Units". The seller is "calidentalsupply" and is located in Los Angeles, California. This item can be shipped worldwide.