Use in horizontal facing light hoods. Provides uva to promote psychological well-being and stimulate normal feeding behaviors. Can be used with repti sun 5.0 fluorescent lamp. True Blue Glass (Not Painted Or Coated) For Betterheat Transfer. Full Spectrum Daylight Bulb For Heating Reptile Or Amphibian Terrariums. European Quality For Long Burn Life. 60 WATTS