I have two Martin pal 1200.... Love this lights, Heavy but fixed install....The fixtures have been in operation for about 10 years , I have them wired at 220, have replaced stepping motors, fans and general maintenance. I have had one problem crop up that I have not been able t o figure out... One of the fixtures has is 50% less bright than the other This is <<<AFTER>>> lamps have been replaced so lamps are new and it doesn't change.... Reflectors are still in great shape... I am wondering if capacitors could have something to do with it etc..... any one want to take a shot at it?