So i spent the day in and out of hardware stores, and came up with this, it is a work in progress as you can see the lamps need to come forward by about 1 1/4" but that is eaily resolved.

Chris at Ai said the lamps need to be 6-8" above the surface for a 24" tank so will adjust these up once I have water in the tank

here are the prototype pics





Maybe that will give some other users some ideas