Reptile heat bulb increases the overall air temperature in the terrarium through UVA rays. It's conducive to reptile activity, digestion and reproduction. Our Infrared Basking Spot Lamps are perfect for observing your pets at night and not disturb their normal activity cycle. Suitable for a variety of reptiles and amphibians, including tortoises, turtles, geckos, snakes, , lizards, , frogs, toads, monitors, hermit crabs, bearded , etc. According to experiments, it is proved that the reptile light bulb is used for 4-6 hours a day, and the heat light bulb is replaced once every 3 months, and the UVA irradiation effect is the best. You must use ceramic lamp holders, and do not use it when the voltage is unstable. Do not use it with dimmers, thermostats, and rheostats. Do not splash water on the basking light bulb during use. When using the reptile basking bulb, keep a distance of more than 30cm from reptiles. Do not turn on the heat bulb immediately after turning it off, and do not turn the bulb on and off frequently. size: 6.3 x 6.3 x 10.5cm Material: Glass colour: red Package Contents: 4 x infrared light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.