J'ultilise this material for almost three months, mobile disco. These scans are great, the quality of the optics to forget their power (100W) and yet they are real professional scans. I was in possession of the future in light of H150, which had an output of 150w, and although I prefer the those 100fois. Moreover their functions are RELEVANT, a reversal of the pan-tilt models for "basic" is incredibly well couraging. A silent but effective ventilation, a solid support, an electronic selection of scans that are the real wonders!! a price defying any competition! A tip for those who want the stuff, reasonably priced, reliable, small, light, buy and you will not deu!