About this item 【4 in 1 UVB Heat Lamp】This reptile heat lamp integrates UVB UVA and heating functions, not only creates a sunbathing area for reptiles, but sterilize and supplement calcium for them. Mercury lamp is an excellent reptile light for beginners and bearded dragon. 【Save Your Time and Money】Mercury vapor bulb has the functions of 4 kinds of other lamps (sun basking lamp/red infrared lamp/uva lamp/uvb lamp), no harmful UVC and the lifespan is more than 3000h. One bulb solves your all problems, no more money for multiple bulbs. A UVB tester is included in the box, you can perform UVB test immediately. 【Wide applicability】The surface of the bulb has a fog-like coating, which make the UV light more uniform and soft. Thus applicable to variety of reptiles and amphibians, such as lizard, bearded dragon,tortoises, turtle, gecko, snake, ball python, red tail boas, frog, toad, hedgehog. Reptiles uvb light is also suitable for sterilization and disinfection within a certain range. 【Cold Start Function】The reptile bulb does not turn on for a short time after turning off. Because the air pressure inside the lamp is too high at this time, the ballast cannot trigger the arc. It takes about 15 minutes for the air pressure to drop before it can be turned on again. This is not a malfunction, it prolongs the life of the lamp. 【100% After Sale Service】Our professional reptile lamp shop provide 2 months unconditional refund/replacement, please feel free to contact our customer service. See more product details