The 4000 lux-intensity Microlux LED fiberoptic trans-illuminator aids diagnosis and detection. The technique of fiberoptic illumination can detect caries, calculus, crown fractures, even root canal orifices - often without the need for additional X-rays. It provides immediate feedback to save time, improving patient comfort and care! The battery powered Microlux Trans-illuminator provides a bright, focused beam of cool white light to assist with diagnosis anywhere, anytime. Higher-intensity LED still offers 50,000 hour life. Standard replaceable, autoclavable black glass light guide provides concentrated 3mm spot. The kit comes complete with trans-illuminator, 3mm LED light guide and pocket clip. Operates approx. 30 hours of continuous operation on three replaceable size N 1.5V batteries included. One year manufacturer's warranty.