I use it for 2 years, small laser very powerful, unbeatable price-quality ratio, strong point price, weaknesses, plastic finish and use without Controller, disaster, figures very poorly dessinn es, with lots of small unsightly loops. on the other hand, with a Controller, it can slow down the figures, and he gives all his interest, proper coverage, just test figures one by one with speeds of dfilement diffrentes , and we realize very quickly that he is unable to hold some figures, and others give a rather dramatic effect, it is sufficient to program good. Controller with DMX standard, it dchire and then the green is a color that relaxes right? Finally, I do not regret this purchase, he has not lost power for 2 years, unlike other two spokes model, barely more expensive that lose their power after 6 months.