The weather resistant ECO Spot LED40E-LE LED Liquid Effect Projector utilizes US made 40W high end LED technology. It is 3-4 times stronger than other common effect projectors. While being designed for exterior applications with weather exposure, it can also be used indoors. This unit is discounted because the color change switch is on the inside so you have to take the face late off to switch the colors. It also has very minor scratches and cracks in the color plate but doesn't effect projection. Please see images below. Thank you.