These slim EcoTech reflector light units produce amazing results with any 39w T5 light tube in aquatic, planted terrarium or reptile applications. The exclusive 'mirror tech' polished reflector can increase light output by up to 300%. Each light comes with mounting fittings for either surface mount or suspension mount. We highly recommend ZooMed Reptisun T5 light tubes for use with reptiles, the combination providing the best for your reptile! Any same wattage high output globe will work for planted aquaria.