The Exo Terra Compact Top Canopy is a compact fluorescent terrarium canopy designed for use with the Exo Terra Glass Terrarium. This easy-to-install canopy accommodates compact fluorescent bulbs or low wattage incandescent bulbs. A combination of different Exo Terra Repti Glo compact fluorescent bulbs can be used to create the ideal ultraviolet/visual light ratio or a combination with an incandescent light source. DIMENSIONS (WXDXH) 30 X 15 X 9 CM 11.8 X 5.9 X 3.5 "