The Exo Terra Dual Top UV Light and Basking Spot Terrarium Canopy, 18 inches, is a fluorescent and halogen combination terrarium canopy designed for use with the Exo Terra Glass Terrarium. This durable aluminium canopy can accommodate two 14-watt Exo Terra Repti-Glo linear fluorescent bulbs and one 35-watt Exo Terra Halogen bulb. The two power cords and switches enable individual control of the light sources and the halogen light increases the ambient air-temperature in the terrarium and can be controlled with the optional Exo Terra Thermostat. A combination of two Exo Terra Repti-Glo bulbs can be used in order to create the ideal ultraviolet, visual light and heat combination for any specific reptile. Optional accessories, such as the Exo Terra Digital Thermometer and Hygrometer and the Exo Terra Thermostat and Hygrostat, can be slid into the special sliding rim on the top of the Exo Terra Dual Top UV Light and Basking Spot Terrarium Canopy.