<b>Why is lighting important for aquariums</b><br> In its most basic role, aquarium lighting allows hobbyists to observe aquarium inhabitants. But more importantly, proper aquarium lighting provides vital energy to photosynthetic plants and fishes. Proper aquarium lighting is essential for any system that contains photosynthetic organisms such as plants, anemones or corals. Lighting also influences fish behavior and physiology and is vital for the overall health and well-being of the entire aquarium. <br><br> <b>Adjustable mounting legs</b><br> The adjustable mounting legs allow for flexibility in fitting aquarium widths of 46-54 inches. <br><br> <b>LED blue and white light</b><br> 180LEDs (150 white and 30 blue) are composed of white and blue setting and blue setting. The day time mode provides bright white lighting that gives your aquarium a clean, balanced and consistent natural color. The night time mode provides a cool, shadowy actinic blue light. It's certainly a nice change from dull and even monotonous color arrangements and artistically designed to comfortably bring light to your fish, with a harmonious ocean feel at night. <br><br> <b>Specifications:</b><br>Model: 46" (ZJL-120A)<br> Fits for Aquarium Size: 46"- 54" Aquarium <br>LED Quantity: 180 LEDs (150 White + 30 Blue) <br> Cable Length: 5.2 Ft.<br>Adapter Power Input:100-240V 50/60 Hz Output:20V 2A <br> Wattage: 32W <br> Dimension (not include brackets): 46"L x 4"W x 3/4"H <br> Dimension (include brackets): 48"L x 4"W x 2"H<br> <br> <b>What's in the box</b> <br> - 1 x LED Aquarium Light<br> - 2 x Extendable Brackets<br> - 1 x Adapter<br> - 1 x User's manual <br><br> <b>NOTICE</b><br>This appliance was designed for use over a glass aquarium cover or acrylic top. DO NOT USE OVER “OPEN” WATER. <br>Before you add a new lighting to your tank, it is recommended that you do several water changes to try and reduce the amount of nutrients in the water.<br><br>