Wave point Tropical Wave 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 6,700k lamps will emit warm white color light that creates a natural looking aquatic environment. The light is very similar to the sunlight; the 6,700k light has a high lumen and par output. For use: Saltwater, reef, planted, freshwater and for use in refugium. Ideal for use in planted aquariums.