Radium HRI Mogul Base Metal Halide Lamp - 250W - 20000K
German Radium Mogul Base Metal Halide lamp encourages fluorescence from your corals with intense blue-white rays. Coloration is also ideal for simulating dawn-dusk light cycles. Requires magnetic pulse start, magnetic HQI or electronic ballast. Lamp burns bluer with magnetic pulse or electronic ballast. Lamp burns whiter with magnetic HQI ballast.