The Marineland Single Bright LED Light provides a high quality, natural-looking light that shimmers and creates shadows throughout the water, adding depth and dimension to the aquarium. Use the white LEDs during the day and the blue LEDs at night to enjoy the aquarium at all hours of the day. The unique, sleek, contemporary design has adjustable support legs to fit aquariums 48-60" wide. The energy-efficient lights last up to 17,000 hours.