I've been searching for a fluorescent light that could replace the twin incandescents over the dinette (to be mounted inside the front vent) and found this:
http://store.solar-electric.com/thin94913wat.html
Do you think it would fit into that space? Actually, I'm vacillating between buying the bigger wattage one; that's the light in our TM that gets the most use (except for when we're dry camping & I'm always making everyone turn it off).