NY wrote:
The only problem that I've had is with the angle of beam coverage. We have
GU10 mini reflector lights in the bathroom (three aimed vertically
downwards through different parts of the ceiling) and in the kitchen (five
on a horizontal strip so each one can be aimed individually).

I achieved a temporary diffuse beam on an LED lamp with a piece of milk
bottle. The permanent version was a piece of roughened acrylic cut to fit
in the bezel. Hopefully that's UV safe (it's sold for greenhouses and the
like).

Theo