I do believe the 29G biocube has 1 Coralife 10,000K 36Watt Compact Fluorescent lamp, 1 Coralife Actinic 36Watt Compact Fluorescent lamp, 3 ¾ Watt Lunar Blue, Moon Glow LED lights and dual fans integrated into the hood.
And the dimensions are L 20.8 x W 19 x H 20.1.. So.. 36W PC lighting over 20" of height.. Don't really know. :/