"The Arcadia Reptile GoldenSun Colored Basking Halogen is expertly designed to emmit a highly bioavailable, mid-beam, naturalistic golden glow for deep tissue warming within your reptiles. CCT 2300 Kelvin The Arcadia Reptile GoldenSun Halogen Flood lamps are powerful, crisp, bright and Infra-Red-A rich. These lamps are better reflected and insulated than standard glass lamps and therefore more energy efficient. This enables them to provide high levels of heat and visible light. The Arcadia Reptile GoldenSun Halogen Flood lamp has a built in metal reflector for optimal light delivery to the basking zone. Beam radius is 9""/23cm+ at 15"" with solid heating over the whole central area. Arcadia Reptile wide beam GoldenSun Halogen Flood Lamps are powerful and robust and should be used with a suitable dimming thermostat, UV and LED System."