Marineland LED Strip Lights provide the ultimate opportunity to create a realistic underwater home-aquarium environment. This all-new line of LED lights is 20% brighter and is designed for reliable, long-term performance. Adjustable mounting legs allow for flexibility in fitting aquariums widths of 18-24 inches, 24-36 inches, 36-48 inches, and 48-60 inches. A daylight setting is brighter than a single tube fluorescent fixture, and a lunar setting provides a realistic moonlight shimmer. Both settings are energy efficient and can provide up to 5 years of use.