Specification: Item Type: UVB Reptile Heat Lamp Bulbs Material: Ceramic Size. Height: Approx. 5cm/2.0in Diameter: Approx. 5cm/2.0in Light: Warm Light Use: Insulation Equipment Type: Warming Lamp Application: Parrots, Chickens, Reptiles, Reptiles, Turtles and Other Animals Screw Base: E27 Light: with Bulb (Shipped with Light Source) Gross Weight: Approx. 43g/1.5oz Package List: 1 x UVB Reptile Heat Lamp Bulb Note: Please allow some errors due to manual measurement. Features Energy Saving: The UVB full spectrum sun lamp uses the full spectrum, low power, energy saving and power saving, even light, to help pets supplement calcium. Simulation of Sunlight: Provide the daily intake of UVB rays needed to accelerate vitamin synthesis, promote calcium absorption, and help bone growth. Durable Material: UVB reptile heat lamp bulbs use high end wick to eliminate aging and burn off, three dimensional concave and convex reflective surface to strengthen the UV. Easy to Install: The UVB sunbathe heat lamp bulb is easy to install, just screw it into the standard E27 screw base, applicable voltage 220‑240V. Applicable: UVB reptile light is widely used for various reptiles and amphibians, such as, parrots, chickens, reptiles, pets, turtles and other various animals.