[High Quality Material] The 75W Tortoise Heat Lamp Bulb uses silver plating process to ensure anti-oxidation and anti-explosion. it uses vacuum glass tube to prolong lamp life. [Full Spectrum UVA + UVB Sunlight] UVB bulb provides warmth for reptiles in the cold season. beside it contains 97% UVA which stimulate appetite, 3% UVB promote vitamin D3 synthesis, fully absorb calcium. Bring sunlight home to prevent disease and promote growth. [Improved UVA Output]: An improved concave and convex reflector improves the UVA spectrum and provides more direct sunlight and higher UV radiation. [Easy and Wide Use] The heat bulb uses a standard E27/E26 screw base for simple and easy installation. It is suitable for a wide variety of reptiles and amphibians, including turtles, lizards, bearded dragons, snakes, frogs, iguanas, turtles, chuckwallas, etc.