I just changed the location of my studio and my previous was pot lights.. white walls..high ceiling.. new studio is fluorescent lights with cream walls, low ceiling.. had to change my kelvin temps in the new studio, have never before. I do not use strobes or studio lighting but have always bounced my flash. Always,, even in ppls homes. always been happy. So frusterated as my images are no longer consistant in the new studio.. same settings one could be yellowish, one could be perfect.. I wondered if it was because I was bouncing my 580 EX flash off the lighting... some say it's the flickering bulb.. I don't want to put money into changing anything until I am completely sure. Bulbs are not cheap and fixtures to change are $300 per fixture and there is 7.