The Reptile One Dome Reflectors are designed to direct heat and light produced by a heat lamp towards an intended basking site. These reflectors are a high-quality metal dome reflector with an E27 screw type ceramic, heat resistant socket that will suit most reptile lamps including the range of Reptile One heat lamps. Specifications: Available in 3 sizes 46545 - suit up to 50W E27 Screw fitting 15 cm 46546 - suit up to 100W E27 Screw fitting 22 cm 46547 - suit up to 150W E27 Screw fitting 26.5 cm Features & Benefits: Prevents reptiles from coming in contact with heat lamp element Reflective surface in the dome maximizes the heat lamps energy to a chosen heat zone Suitable For: Reptiles and Amphibians Globe not included, sold separately.