The Exo Terra T5 Reptile UVB Terrarium Top is a high-performance lighting solution designed for reptile terrariums. It is usable with any T5 Linear fluorescent bulb and is specially designed for use with Exo Terra Reptile UVB VHO T5 Bulbs. The highly polished reflector increases lamp output by up to 2.5 times. It can be easily linked (up to 10) with an optional grounded interconnection cable. This model is 35 cm and 8W.