Hello, I have scoured the forums trying to find out how specifically to convert Norman 900v lampheads (LH2000, LH2400) to work on 900v Speedotron power packs (2403cx, 2401, etc). I have found suggestions for repair shops and a lot of cautionary notes but no specifics on the procedure. I have also heard of adapter pigtails that can adapt the pins to the correct voltages without permanently altering the light itself. Calling all the recommended repair shops I have found out that no one makes the pigtail adapters anymore because the demand is so low and the parts are unreasonably expensive. Some still convert the lampheads but the shipping alone is more than the cost of the procedure. Apparently it's relatively simple. Changing one wire to a new location and lifting one jumper. Does anyone on this forum know the procedure? Or have the schematics available for Norman and Speedo? I have more time than money so I would like to do this myself. And before you warn me that I may kill myself, I have hand built custom tube guitar amplifiers for years so I know my way around the inside of high voltage electronics. I have also rewired many arc damaged amphenol 9pin connectors on the ends of Norman lampheads. Converting a Norman lamphead to work on Speedo should be much easier than both activities. There seem to be a lot of well informed technically minded individuals hanging out here so I'm hoping someone will chime in. Alternatively, if anyone happens to have any old pigtails converting Norman 900v lampheads to 900v Speedo, that you no longer use, I would potentially like to purchase them. Thank you for taking the time to read this.