AquaSun 10,000K T5 Fluorescent Aquarium Lamps by UV Lighting Co. The best technologically advanced aquarium lamp on the market. Containing a mixture of unique triband phosphors that peak at 10,000 Kelvin temperature is used for optimum plant and coral growth. Can be used for Fresh and Saltwater Aquarium tanks. URI has established itself as the hobby favorite with their popular VHO lamps and now they're continuing this with their T5 line. T5 lamps are unmatched in their output and intensity due their reflective possibilities. Their small diameter (compared to other fluorescent lamps) allows manufactures to create parabolic reflectors that are extremely efficient. These lamps are the future of fluorescent technology. Whether you use them as supplementation with metal halide or stand alone they are sure to impress. URI AquaSun T5 lamps feature the best technologically advanced aquarium lamp containing a mixture of unique triband phosphors. Excellent for all marine applications, hard coral, plants, fresh water, and salt water tanks. *Important Shipping Information: Minimum order of 2 (two) T5 lamps, (Mix & Match), to qualify for our standard shipping fees.