Metal Halide Aquarium Lighting System MHS 24",MHS 36",MHS 48",MHS 60",MHS 72" This spectacular 24-hour lighting solution combines our 14,000K Metal Halide(s), Odyssea Dual Actinic Power Compacts and Moon Lunar Lights into one sleek, integrated fixture that brings out the real colors in your reef tank. All-in-one fixture Cool running, ultra-quiet fans for maximum thermal efficiency Easy installation - stainless suspension system and docking mounts included External ballast