In message , Andrew Gabriel
writes
Both applications have already been taken over by HID lamps. The same
is likely to happen with spot lamps in the home (already pretty much
completed in commercial premises). Integral ballasted metal halide
retrofit lamps are being manufactured and sold in some countries now,
but haven't found their way into UK retailers yet AFAIK.

And I'll bet you've been hunting high and low.

--
Clive Mitchell
http://www.bigclive.com