PERFECT FOR PLANT GROWTH & DISPLAY: While powered by a wall outlet, the Cascade Plant Growth LED Light encourages and stimulates plant growth, be it in a refugium, a desktop aquarium, or a non-aquatic plant display. This LED Light is also great for illuminating rimless fish tanks between 5 and 20 gallons in size. EASY INSTALLATION AND ACCESS: Clip-on design allows for a quick and simple installation on any rimless aquarium! This Plant Growth LED Light also features a hinged base that gives the fixture 90° mobility for easy access into your aquarium. BRIGHTLY BENEFICIAL LIGHT: This Plant Growth Light contains a total of 12 high powered LED bulbs (red = 620nm / blue = 450nm). The combination of red and blue lights is essential for plant growth, and looks absolutely amazing while illuminating a desktop aquarium. MEASUREMENTS: Overall, the light fixture measures approximately 4.5” (W) x 4.5” (D) x 6.25” (H), with a fixed height. SHOP PENN-PLAX FOR ALL YOUR PET’S NEEDS: PENN-PLAX is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.