I was also wondering how noisy the fans might be, so am considering PAR-180 High Power LED PAR Light - Qtx | CPC UK (farnell.com), which appear to be fanless.
Has anybody tried one? How does it perform. I only want it for colour, as I have tungsten for white. In a community centre, approx 3m from the stage, so very different to what Ian W wants them for. But cheap, so is it worth a try?
It says 60 degree beam angle. What does that mean? Is it to 1/2 brightness, or something else? (-3dB points, if I were considering an antenna)