High temperature resistant ceramic lamp head, reflector dome provides focused heat and light. Fits E27 socket light bulbs and suitable for installing bulbs of less than 300W. Suitable for various reptile lamps, such as heating light bulb, halogen bulb, ceramic heaters, night light, UVA Bulb, Halogen lamp, infrared heater, etc. With on/off switch on the power cord, more convenient and practical for use. Strong reflection, concentrated heat, thickness: 1.0 aluminum plate. Inner high-reflection let UVB do not leak light and side light, better reflect UVB, let the pet absorb UV light better. Can be used to keep warm for reptile terrarium (tortoises, lizards, etc) and also can be used to sun and supplement the calcium for water turtle, etc in tank. Specification: Material: Aluminum + Ceramic Power Plug: US Plug Voltage: 110-120V Fit for E27 connection head lamp Maximum load power: 300W Lamp Holder Head Diameter: Approx. 13.7cm/5.39inch Lamp Holder Head Height: Approx. 12cm/4.72inch Overall Height: Approx. 17cm/6.69inch Wire Length:Approx. 140cm/55.12inch Color: Black Package Includes: 2 Pieces Lamp Holder Note: 1.Please allow a slight difference between the size above and the actual item due to manual measurement. 2.Due to the difference between different monitors, there could be a little color difference acceptable, please kindly note.