MarineLand Reef LED Strip Light Daylight 14,000K 1 Watt LED Lamps provide the correct spectral output for reef aquariums Lunar 460NM 1 Watt LED Lamps provide light that replicates deep water light needed for proper coral growth Integrated timer allows you to control the daytime and lunar settings automatically Adjustable mounting legs for flexibility in 18-24 aquarium widths Energy efficient for up to $100 in annual savings* and up to 10 year lifetime**