The ReptiSun Terrarium Hoods are low profile hoods designed to hold one T5 HO High Output linear fluorescent lamp. The ReptiSun Terrarium Hoods feature a built-in reflector which allows for deeper penetration of visible light and UVB into your terrarium. Convenient on/off switch. Reptisun T5 HO 5.0 UVB lamp included! Available in 20in, 30in and 36in widths.