the DBS-1000 has a max wattage of 500. so you should, IN THEORY, be able to run 50 feet of flexwatt at 10 watts a foot. Im not an electrician so I dont know exactly how that would work with a standard wall outlet. I wouldnt push it that hard though, I would run 400 watts on a single unit and than invest in another, to much risk to save a few bucks to me.