Product Description
Reef Bright 250W-20K/20K (Actinic) The TWIN-ARC™ tube metal halide lamp is literally two bulbs in one switching arc’s tubes each time the lamp is fired to provide maximum output and color consistency while saving you money with its energy efficient design. Promoting maximum growth and color in corals and other invertebrates the Twin Arch technology performs better, lasts longer and maintains its color(spectral power distribution) better than conventional metal halide bulbs. When replaced annually the TWIN-ARC™ tube metal halide lamp can help eliminate light shock to corals and reduce the occurrence of unwanted nuisance algae caused by degrading aquarium lamps.