Can Lights or Recessed ceiling lights

Has anyone found a low profile LED recessed ceiling light fixture?  Eichler style construction has only a few inches in the ceiling thickness.  Recessed lights often need a small box sealed into the roof.  This shows on the outside.  Several Contractors have not been able to find  a suitable product.  

The problem is that conventional construction has lots of room for the light housing and a regular flood bulb (LED or CFL).   I'm thinking the market for such a product may be too small to warrant development of a low profile product.  The main problem may be that the LED bulbs tend to be the same size and shape as conventional bulbs.

Randy from Dura-Foam Roofing and Solar Center