Our Fiber Optic Hand Held Light Source is the perfect match for our Fiber Optic Power Meter. This Fiber Optic Hand Held Light Source has a long battery life of 30-Hours and an optional AC power supply is available. This Fiber Optic Light Source has a protective rubber boot, an auto shut off feature, and a low battery indicator. Singlemode units are equipped with lasers having a typical output power of -1.0dBm. Multimode units have LED?s with a minimum output of -17dBm. Choose continuous wave (CW) or 2kHz modulation. ST or FC fiber optic adapters are available. The Fiber Optic Hand Held Light Source includes operating manual, 9V battery, and a one-year warranty.