Product: Elos Spectra HQI 70w - 10000 °K
General technical information:
ELOS Spectra is a bulb for tropical Aquarium made to be use both in Fresh Water as well as in the Marine Aquarium. Characterized from an absolutely natural brightness, the same that can be fiound in tropical marine areas, in order to reduce the harmful UV rays, it is equipped with a special UV-P filter that protect the living animal inside our aquarium from the UV-C (100/280nm) radiation thus permiting the irradiation of only around 10% of the UV-B (280/315nm) radiations.
The UV-A radiation (315/380nm) will completely pass through this UV shield becoming "pure energy" for those autotrophic organisms (that use the solar energy for living) like, for instance in the marine aquarium, the zooxanthellae.
It is exactly this type of radiation that will help the activation of fluorescent pigments, like the S-320, that exactly absorbs the wavelength of the 320 nm giving a unique colors to the corals that populate our marine aquarium.
In common bulbs it is therefore the fluorescences of the corals, much beloved from marine aquariums, that will disappear if the proper spectrum will not be used.
For this reason ELOS have produced ELOS Spectra, an HIT bulb that respects the wavelengths wich are basic for the photosynthesis.