20 watt halogen illuminator for microscopes. It comes with a 115V solid-state light source with full intensity-adjustable and a 23" (585mm) metal-sheathed gooseneck cable. This high intensity lighting system is excellent for semiconductor, electronic and biological applications.Features & Specifications:Bright and even halogen illuminator with variable-intensity.Flexible and very convenient for any workspace.23" flexible goose neck cable.120 volt light source.12 volt, 20 watt halogen bulb.Manufactured under ISO 9001 Quality Control System.Excellent One Year Manufacturer Warranty.Shipping Weight: 7 lbs.