... Tubular shape, Spiral shape etc, used for reptiles uvb reptile lamp Power: 10w,15w,17w,18w,25w,30w,36wCap ... a high visual light output and a very high color rendering index (CRI) and low UVB radiation. This bulb ... is also a perfect complementary light to a UVB bulb to boost visual light. UVB5.0: For reptile with high UV requirement. ... .0UVB togetherSuggest to change lamps every year uvb reptile lamp