1000W Philips US M47 Metal halide lamp lit.

having acquired this lamp many years ago while on holiday in Israel, I finally found the Proper Ballast for this lamp which works on 240V 50Hz which has enabled me to run the lamp up properly to full power without the need for the very complicated setup that I had posted about before :) (in subsequent run ups I moved the LCD monitor out of the way as it was getting alarmingly warm!)