Zoo Med T5 HO Reptisun Terrarium Hood 48" takes reptile lighting to the next level with greater energy efficiency and higher UVA, UVB AND full spectrum light output Zoo Med ReptiSun T5 HO High Output Terrarium Hood employs a rapid start electronic ballast that maximizes lamp performance. The T5 reptile light fixture also features a highly polished curved reflector that directs light down into the terrarium so your reptile receives the full benefits of T5 HO High Output linear fluorescent lamps. The result is stronger UVB and brighter light output than standard T8 fluorescent reptile lamps. Increased light and UV output Low profile design Energyefficient with rapid start electronic ballast High polish curved reflector increase lamp efficiency to optimize reptile light condition.