The MDS Halogen Light Source provides 150 watts of halogen light for all of your rigid endoscopes, as well as most of our flexible models (XS-20 excluded). The Powerful 21V bulb is rated for over 500 hours of use and is economical to replace ($35.00). The small size and carrying handle make ideal for in-office or mobile applications. The optional fiberoptic cable is 7.5' and can be custom made to fit any brand of scope, or lightsource and costs $149.00.