?Unconditional refund for broken bulbs. Please contact LUCKY HERP customer service. ?Safety Instructions - You must use good quality 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. ?Standard of Use - 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. Use in standard E26 lamp base, 120 volts and easy to install. ?Suitable for Many Animals - Our reptile heat lamp is suitable for a variety of reptiles and amphibians, including tortoises, turtles, geckos, snakes, iguanas, lizards, chameleons, frogs, toads, uromastyx, chuckwallas, monitors, tegus, hermit crabs, bearded dragons, etc. ?Simulated Sunlight - LUCKY HERP heat bulbs create an area for reptiles to bask in the sun, increase the overall air temperature in the glass container, which is conducive to reptiles' activities, digestion and reproduction.