The higher colour temperature of this bulb is achieved through a special manufacturing process which at the same time guarantees a long colour stability which is a problem with many bulbs towards the blue end of the spectrum. This bulb contributes to a healthy growth of your corals and produces stunning colours in your reef aquarium.

colour temperature: over 14.500 Kelvinavailable in 150 and 250 Watt double ended, and 250 and 400 Watt single ended (mogul E40)

Giesemann aquarium metal halide lamp