The ellipse marine hybrid is ideal lighting for marine aquariums as it utilises the arcadia marine hybrid compact lamp to enhance the colours of your aquariumr actinic white lamp that enhances blue and violet marine coloursr r high photosynthetic light contentr easy to fitr waterproof to ip67 standardr elliptical reflector for even light distributionr mounts to tank rim 4 12mm thickr 90 degree hinge mechanism for easy tank accessr dimensions360mm wide x 260mm deep front to backcable length