The Radium Metal Halide 250 Watt 20000K Bulb is a premium lighting solution specifically engineered for saltwater reef aquariums. This powerful German-made HQI lamp emits a deep blue spectrum, expertly designed to enhance the vibrant fluorescence of corals and fish within your aquatic environment. It effectively transforms your tank into a captivating display with its unique actinic appearance.

With a robust 250-watt output and a striking 20000K color temperature, this bulb provides intense illumination necessary for photosynthetic corals. It is crucial to note that this specialized lamp requires a compatible 250-watt HQI ballast or a 250-watt electronic ballast for proper and safe operation, ensuring optimal performance and longevity.

This bulb is an excellent choice for experienced reef aquarists and enthusiasts who prioritize a dramatic, deep blue aesthetic and maximal coral coloration. Ideal for those upgrading an existing 250-watt metal halide setup or building a new system, it helps cultivate a thriving reef ecosystem while providing a visually stunning, actinic-rich display.