Exo Terra Solar Glo Sun Simulating Lamp is a self ballasted mercury vapor bulb with UVA, UVB and heat for basking. We have been testing these bulbs and have found adequete levels UVB with a safe index at a distance of 12". We are not finished testing the useful life of the Solar glo, but if the quality degrades fairly quick, this bulb should be replaced every 6 months. This is a great bulb to use in the winter time when keeping temps high is difficult.
A Deep Dome fixture is needed to accomodate the size of the Solar Glo.
Only use fixtures with Ceramic Socket rated for High Wattage.
Insurance avaialble for shipping with USPS