Simulate ultraviolet sunlight: UVB reptile light, commonly referred to as calcium supplement lamp, can improve appetite, mobility and reproductive behavior of reptiles, aid vitamin D3 synthesis and protein binding. calcium, promote healthy bone growth and calcium growth demand, lack of UVB can cause various diseases. Ideal for various reptile pets: This UVB reptile bulb provides the necessary UVB rays for the turtle to develop its shell, ideal for all desert reptiles, such as bearded dragon, lizard, snakes, iguanas, toads, etc., also suitable for plants succulents, helps plants photosynthesize. Large bright area of spiral tube: This compact fluorescent light bulb desert terrarium lamp with spiral tube design increases light emitting area, high UVB output, no harmful UVC output for your pets. to change your UVB lamp in 12 months Fluorescent bulbs do not provide enough heat. Energy saving UVB turtle lamp: Our professional UVB reptile lamp with durable and intelligent chip ensures constant current to better protect the circuit board, offers brilliant luminosity while saving a lot of power, 2 to 3 hours daily use is sufficient, easy to install, just need to Screw it into a standard E27 lamp holder. Premium Material Our UVB Calcium Supplement For Vivarium Lighting Bulbs are made of high quality glass, heat resistant, sturdy and durable in use, they are perfect for your beloved pets. If you have any questions about our product, please contact us, we will respond and help you within 24 hours.