Feature: 1. Suitable for breeding chickens and other poultry, just screw the bulb into your lamp and adjust the heat to the temperature you want. 2. The alloy bulb has a 5000 hour life span which ensures you have plenty of hours of warmth for your brooding chicks. 3. Can provide enough heat for small groups of animals with uniform temperatures for a long time. 4. The voltage of this bulb is 220V and the power is 250W, providing enough temperature when the animal is incubating. 5. Infrared heat waves effectively provide the overall temperature in the terrarium and improve the metabolism of chicks. Specification: Item Type: Chicks Heat Lamp Bulb Material: Glass Size: Approx. 19x13x13cm / 7.5x5x5in. Package List: 1 x Bulb