This new LED fiber optic microscope illuminator provides strong, even and cool daylight illumination. It comes with 20 Watt LED light source. The light source has a built-in heat filter for cool light . This LED light has radiator and cooling space which allows no cooling off time needed after use. The inside fan design also allows the unit to work with very low noise. This cool high intensity lighting system is excellent for biological and electronic applications. This unit is brand new in original box. Features & Specifications: Cold LED Fiber Optic Illuminator 20 Watt LED Light Source with Variable Intensity Built-in Heat Filter Radiator and cooling space allows no cooling off time after use Inside fan design allows the illuminator to work with low noise Great for Discriminating Lighting Perfect for Evenly Illuminating a Specimen without Heating High Intensity 20W LED light 6400 Degrees Kelvin Lamp Color Temperature Durable Metal Construction Manufactured under ISO 9001 Standards Shipping Weight: 12 Lbs Packing List: One 20W Variable Intensity LED Light Source One Power Cord