Use the 5,000K High-Intensity lamp to maximize the growth of live aquarium plants. These new T5 lights provide more light output than T8s! 5,000K High-Intensity lamp to maximize the growth of live aquarium plants. Ideal for planted aquariums or terrariums. Long Lasting: Effective for up to 10,000 hours. Combine with Zoo Med’s Ultra Sun® for the maximum full-color viewing pleasure of your fish and plants. Distributes the light evenly across the water surface. Generates less heat as compared to metal halide lamps. High-quality lamp manufactured in Germany.