sorry guys... it's actually 12"... haha.. that's a typo... >< sorry about that...
i bought new HQI lights from Japan and asked my friend to bring them here....
the standard light bulb for this Giesemann setup is 13,000K bulb... but it's too bluish for my fresh water aquarium. so i gave that brand new bulb to one of my friends and then i bought a 10,000K from J&L.... and still too bluish for my tank...
the HQI lights i have now are running with 6500K color temperature which is awesome for this tank!
so.... that's the story why i'm selling it~~