Features: 1.Perfect 24 hour heat source for all reptiles. 2.The flat-faced design is more efficient and longer lasting than conical designs which build up excess heat internally ultimately carbonizing the element. 3.Light is more effective with the use of UVB Lamp. 4.These heating devices screw into a standard porcelain incandescent socket, giving off intense light. 5.Ideal for basking reptiles, more concentrating reflectors, halogen prominent hotspots. Specification: Features:_x005F_x000D_ _x005F_x000D_ Perfect 24 hour heat source for all reptiles. _x005F_x000D_ The flat-faced design is more efficient and longer lasting than conical designs which build up excess heat internally ultimately carbonizing the element. _x005F_x000D_ Light is more effective with the use of UVB Lamp. _x005F_x000D_ These heating devices screw into a standard porcelain incandescent socket, giving off intense light. _x005F_x000D_ Ideal for basking reptiles, more concentrating reflectors, halogen prominent hotspots. _x005F_x000D_ _x005F_x000D_ Specification:_x005F_x000D_ Material: Glass_x005F_x000D_ Color: Silver_x005F_x000D_ Base: E27_x005F_x000D_ Watt: 25 / 50 / 75 / 100W_x005F_x000D_ Voltage: 220V_x005F_x000D_ Size (Dia.) x (L): 6.3*7.5cm / 2.5*3.0inch(Approx.)_x005F_x000D_ _x005F_x000D_ Package list:_x005F_x000D_ _x005F_x000D_ 1*Reptile halogen bulb _x005F_x000D_ _x005F_x000D_ Notice:_x005F_x000D_ _x005F_x000D_ Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. _x005F_x000D_ Please understand that colors may exist chromatic aberration as the different placement of pictures.