Why the cold blooded reptile need UVA +UVB spectrum.\r\n\r\n∆Reptiles require UVB light to absorb and metabolize calcium ,and the main function of UVB is to make D3 and promote calcium absorption.\r\nVitamin D3 is an important part of calcium metabolism in Reptiles require. Enough vitamin D3 is helpful for Reptiles require to form good and healthy bone tissue.\r\n∆Honpal LED UVA+UVB Lamps output is similar to the Necessary Radiation of the Sun for Reptiles (visibile Light,UVA and UVB),keep your Favorite Reptile Species Basking in Healthy UVA and UVB Rays\r\n\r\n\r\nSpecifications: \r\nSocket: E26\r\nVoltage: AC 100-245V\r\nWatts: 3W\r\nMaterial: Aluminum\r\nDiameter：1.88 In\r\nHeight: 2.87 In\r\n\r\n\r\nPackage Includes:\r\n 1-pack 3W Led Reptile Light\r\n 1*User Manual\r\n\r\n\r\n∆∆∆∆Note: ●This product is more focused on providing UVA and UVB spectrum instead of heating and lighting, so please be cautious when ordering customers who want to use the heating and lighting function. ●This LED UVA UVB Lamp emits UV radiation ,do not stare into this lamp! ●This lamp must be placed directly overhead of your reptiles, and not to the side which would force them to stare into the lamp. ●This lamp is intended for indoor use, and reptile use. ●UVB light is invisible to the naked eye so when using this bulb one of the chips will appear illuminated.