Features: Longer lifespan: It offers continuous heating of 20,000 hours. Solid ceramic components for all kinds of wet ecological environment; Fast heating and high efficiency: The heating lamp generally increases the heat within 30 seconds, it will continue to heat and cannot maintain a constant temperature; if you need to maintain a constant temperature, you need to use it with a temperature controller. Hanging hook design: The hook at the side for hanging items on pet cage; For pets: all kinds of reptiles, turtle, snakes, lizards, frogs, chicks and other pets. Great Heat light bulb improve blood circulation of a variety of pets; to activate the pet molecular activity; enhance pets' metabolism, improve the immune function of pets so as to offer the pet a suitable temperature environment. Specification: Material: Metal + Ceramic Watts: 100W Size (Dia.) x (L): 10.5 x 7cm / 4.1 x 2.8inch(Approx.) Package list: 1 x Ceramic heat bulb 1 x Cage Notice: The ceramic heater is not glowing of good heat effect. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. Please note that the old and new type of the product will be sent randomly, and make sure you will not mind before ordering.Please note that the bulb color of this product will be sent randomly, please make sure you don't mind before ordering. Attention: 1. Do not use it in water. 2. Do not touch the heating lamp to prevent burns. 4. This product only generates heat and does not emit light. 5. This product will continue to heat up after it is powered on, and continuous unlimited heating will produce higher temperatures, so please do not use it for a long time or leave it unattended. If you mind, please use it with a temperature controller..