I use this product for a year and this is one of the first play of light that I have. I use it in a small room (about 30 m2) in the center of the ceiling. The rays are fine and numerous. DMX or with the remote control, it is easy to rule the speed of rotation. The effect is stunning stromboscope (adjustable rate by DMX). Warning there is an error in the documentation on the operation of DMX Channel 1, the speed of Strombo is decreasing and not vice versa. I recommend it for small benefits.