How long have you use it? I have since November 2005.Quelle is so special that you like most and least? The most light and are made to control in DMX facilitation, at least nothing to say, Have you tried many other models before buying it? so small lamps with EFR (15v 150W) How would you rate the quality / price? very well with the experience, you do again this choice? ... yes I think take 2