High Quality MaterialThe 50W Tortoise Heat Lamp Bulb Uses Silver Plating Process To Ensure Anti-Oxidation And Anti-Explosion. It Uses An Evacuated Glass Tube To Extend The Life Of The Lamp.Uva + Uvb Full Spectrum Solar Lamp The 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: Improved Concave And Convex Reflector Improves Uva Spectrum And Provides More Direct Sunlight And Higher Uv Radiation .Easy And Wide UseThe Heat Bulb Uses 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.Safety And Service Safe, Ce-Certified Materials Give You Peace Of Mind. We Provide 365 Days After-Sales Service For All Products. If You Have Any Questions Or Product Issues, Please Feel Free To Contact Our Professional And 24-Hour Online Service Team.