Hardtop Courtesy Light

[East Coast Trailers]

Can anyone tell me where to get a replacement bulb and how to replace the bulb for the cylindrical shaped courtesy light under the hard top (pictured below)?

I could call the factory but figured someone up here could point me the right direction.

Thanks in advance.

[greyg8r]

That looks a whole lot like the light I just bought from West Marine for my cabin. They have a chart with a large number of bulbs, although I don't know how many they actually have in stock.