The black ColorSource Spot from ETC is a four-color LED light engine with a four-blade shutter barrel, suitable for many lighting needs. Using a unique mix of red, green, blue, and lime LED emitters, the ColorSource spot allows for a range of color and depth inaccessible with standard RGB (red, green, blue) arrays. The engine uses a simple 5-channel DMX profile—intensity, red, green, blue, strobe (IRGBS)—and interprets simple RGB color mixing control, automatically adding lime when needed.