rellikdloc im still not sure about the whole 1/10th thing but everythinng about the moonlights is spot one, if your interested in an led upgrade for your tank if yougo to the home site for nano cubees i do beleive they sell new led hoodds as well as metal halide hoods but if your trying to diy upgrade your lighting with some leds than your best bet would be too look at other selfcontained setups and see how they are built than modify, if you need more help pm me im an engineering and fabrication specialist so i can help you from where you may be stuck