Ideal for freshwater or saltwater fish-only and low-high light level aquarium plants, for aquariums 18 - 24 inches (Light length without bracket is 16.1 inches). Build in 8/10/12H Timer and 15 minute ramp up / dim down. Set it, and forget it. The gradual lighting increase when turning on and the gradual lighting decrease when turning off does lend a feeling of being more in nature, avoiding startling your fish. Adjustment can be made for both brightness and color temperature. Very easy to lower the blue lights for a more warm look, or use high blues and low whites for a cool even look. More LEDs offer a higher level of luminous efficiency and brightness, 50% brighter than before. Super bright 6500K White LEDs with optimized spectrum 460nm Blue LEDs for healthy growth of plants.

Shade Material: Glass, Acrylic. Light Source Type: LED. Finish Type: Polished. Material: Acrylic,Glass. Color: Blue,white. Date First Available: July 15, 2019. Best Sellers Rank: #11,384 in Pet Supplies. Customer Reviews: 4.6 out of 5 stars 4,495 ratings 4.6 out of 5 stars. : B07V7DCCJB. Batteries Required?: ?No. Batteries Included?: ?No. Special Features: ?Adjustable. Item Package Quantity: ?1. Wattage: ?15 watts. Pattern: ?Dimmer Switch. Finish: ?Polished. Size: ?18 - 24 in. Item model number: ?N14582. Package Dimensions: ?17.68 x 5 x 3.27 inches. Item Weight: ?2.02 pounds. Manufacturer: ?NICREW. Are Batteries Included: ?No. Voltage: ?20 Volts. Style: ?Classic. Brand: ?NICREW. Power Source: ?Corded Electric. Shade Material: ?Glass, Acrylic. Light Source Type: ?LED. Finish Type: ?Polished. Material: ?Acrylic,Glass. Color: ?Blue,white.