The features of single hole halogen microscope cold Light source 1. Working life of the bulb: 50h 2. Small and light 3. Switch power circuit design 4. Stable 5. Applicable with endoscope, microscope and ingeniously constructed testing Product Description This light source is small and light, stable, witch power circuit design, can be applicable with endoscope, micrscope and ingeniously constructed testing. The bulb can be used for 50hours. Technology data: Voltage: 220V50Hz Input power: ≤300VA00VA00VA bulb power: 150W FUSE:F3AL 250V