Maintain a thriving saltwater aquarium with the Fluval Sea Marine & Reef 3.0 LED Light Fixture 48-60", featuring free FluvalSmart App technology (using Bluetooth). The programmable, gradual 24-hour light cycle settings include sunrise, midday, sunset, and night, plus seven unique band waves for full spectrum results. The optional habitat light configurations, Sunny Reef, Deep Sea Glo, and Color Burst, High Luminous Efficiency LEDs provide improved light output and spectral quality, while using the same amount of power as before. The fixture also boasts a sleek, smooth frame that's 50% lighter than the previous generation. Coupled with the industry leading IP67 waterproof rating, this Light Fixture has it all. Each individual LED casts 120 degrees of illumination for wider, uniform lighting, and that means absolutely no dead spots. To control this light you do NOT need to purchase the Fluval WiFi LED Controller. Features: This 48 inch light has legs that can expand to 60 inches This light is controlled with a the Bluetooth in your Android or iOS (Apple) device (phone or tablet) 59 watts 25,000K color temp At 3": PAR=390, LUX=17,120. At 12": PAR=102, LUX=4270. 2550 lumens. IP67 Waterproof certified Fluval part# 14517