This large 2 in 1 reptile light fixture by Zoo Med handles just about any lighting combination! Features 2 vertically opposed insulated sockets, each with their own ON/OFF switch. Heavy duty metal construction with a polished interior for focusing light and heat for maximum output. The aluminum housing extends beyond the length of standard sized bulbs to keep the fixture sitting flat and securely on screen topped terrariums. Connect to a mechanical timer to automate day/night photoperiod or heat cycles.