Some years ago I got some great 5W recessed LED downlights, no flicker, full-spectrum colour output, which are no longer made (the Orbit ODLI5RW2 in case anyone's interested). Most of the downlights ...
We have just moved into a house that has old incandescent downlights which are open through to the roof space therefore they are inefficient and letting all the warmth escape the house into the roof ...