The gooseneck chart light measures 3" x 1 1/16" and weighs 1 lb. The Gooseneck Chart Light is ideally suited for any navigation station or desktop. The flexible neck and concentrated light allow you to aim the light exactly where needed. This black chart light is sleek and unobtrusive. It uses a high intensity Tungsten halogen bulb which is 5x brighter than a conventional filament bulb to produces crisp, bright white light. A red slide-on-lens is included for use at night to preserve night vision. A convenient dimming control built into the base. Both permanent or "Quick Disconnect" mounting methods included. It has a 12 inch flexible gooseneck for versatility. .38 amp consumption maximum.