Wave point Super Daylight 39 watt 2 pack of high quality versatile high output T-5 lamp which can be a universal replacement lamp for industry standard high output T-5 light fixtures. Wave-points 12,000k lamps will emit warm full color spectrum light that creates a vibrant aquatic environment. This bulb has nanometer peaks in the blue, yellow and red color spectrums creating one of the brightest daylight bulbs available. It is a standard lamp in all HO T-5 Wave-point light hoods. For use: Saltwater, reef, planted and freshwater aquariums.