SunForce Mercury Vapor Bulbs (100 Watts) SunForce Bulbs output UVA and UVB with MicroWatts/CM2 that is as much as double that of competing brands. This output also enables our bulbs to penetrate further into your cage insuring proper UV for your reptile. Available in 100 & 160 watts, SunForce Mercury Vapor bulbs produce UVB, UVA, LIGHT and HEAT and provide high levels of UVA and UVB making them one of the most effective methods of simulating natural sunlight and heat. This simulation not only provides ideal levels for optimum health but can actually have life saving benefits. These bulbs throw UV up to 3 feet and are highly recommended for bearded dragons, chameleons, tortoises, iguanas, monitors, tegus, uromastyx, water turtles, sailfin lizards, basilisks and water dragons.