We sell them and they are pretty nice. About the size of a soda can. The blues are rich and the light pumps out quite a bit of PAR. The downside to them is that the color is not adjustable like the more expensive lights are. One nice feature is the gooseneck mount which eliminates having to hang the light from the ceiling. Overall, I think they are a great value and work well.
the 150 has a 2x2 footprint but is not that powerful past about a foot, other downside is that there is no white and blue mix, its either white, blue or deep blue for the 150's. the 2 350's would be better better but even then you would have to choose between white and blue where the blue is adjustable on the 350's. with the 150's you could do a set of white and blue over each section of the 65=4 lights... or you can just find a brighter flashlight at home depot