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Giesemann introduces 17,500K Megachrome Crystal metal halide bulbs

By Leonard Ho - Posted Jul 20, 2011 02:00 PM
Giesemann has announced today their new Megachrome Crystal metal halide bulb. The bulb is available for double-ended fixtures in 150W and 250W. The Megachrome Crystal is rated at 17,500 Kelvin and reportedly emphasizes violet, blue, and pink spectra.

According to Giesemann's website:

MEGACHROMEcrystal - the perfect light source for all marine aquariums that need a strong light performance in combination with a high blue / violett ratio.

The MEGACHROMEcrystal metal halide bulb offers excellent coloration and high intensity. It is crystal / crisp-white with a light violett / blue tint. It brings out the fluorescent pigments in corals nicely. Fluorescent supplementation is usually not necessary, but can be used for added intensity and to simulate dawn and dusk.

The light spectrum has a pink accent and shows fluorescent effects on many corals which gives a completely different impression of the colour.

The very high 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. An excellent choice for reef tanks with SPS and LPS corals.

colour temperature: over 17.500 Kelvin
available in 150 and 250 Watt double ended

Author: Leonard Ho
Location: Southern California

I'm a passionate aquarist of over 30 years, a coral reef lover, and the blog editor for Advanced Aquarist. While aquarium gadgets interest me, it's really livestock (especially fish), artistry of aquariums, and "method behind the madness" processes that captivate my attention.


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