I don't think that 150w globes would work with a 250w transformer but if they did probably not for very long. Unfortunately Sven, we can't see a picture that is on your desktop :) You will need to upload it - let us know if you need any help.I went back to the guy and he said it was a 250W light with 150W globes...I took a pic file:///Users/Sven/Desktop/IMG_0455.jpg of the ballast...does anyone know if I just need a bigger globe?