The Reef Brite TWIN-ARC is a revolutionary 400-watt metal halide lamp designed to provide unparalleled performance for saltwater reef aquariums. This innovative bulb is engineered to promote maximum growth and vibrant coloration in corals and other photosynthetic invertebrates. Its unique design combines two arc tubes into a single lamp, offering an energy-efficient and economical solution without compromising on powerful, high-quality light output for your reef tank.

Featuring a patented Dual-Arc technology, this lamp is literally two bulbs in one, switching between arc tubes each time it is fired. This process ensures maximum output, spectral consistency, and a longer lifespan compared to conventional metal halide bulbs. This technology also helps to eliminate the light shock and color shift that can occur when replacing old lamps, providing a more stable environment for your tank's inhabitants. When replaced annually, it helps maintain peak performance and can reduce nuisance algae caused by degrading lamps.

This lamp is ideal for advanced reef hobbyists who want to achieve professional-grade lighting results without the need for multiple ballasts or complex lighting systems. It is perfect for aquarists focused on growing light-demanding SPS corals or those looking for a single-bulb solution that delivers consistent color and intensity over its entire lifespan. For those seeking an energy-efficient upgrade that maintains spectral stability and promotes a healthier reef, the TWIN-ARC lamp is an excellent choice.