Ushio GCA Lamp JCV120V-250WC Projector Replacement lamp The Ushio GCA lamp has 250Watt and 120Volt. The GCA replacement bulb has a G 5.3 Miniature 2 Pin base. Ushio JCV120V-250WC lamps is a tungsten halogen light bulb with a average life of 200 Hours. The CGA bulb is used in fixutres asLowel Pro Light, Lowel Rifa 44 and many other stage, studio and projectoin applications.