The Quartet has four 300-Watt lamps fitted with four dichroic filters; blue, red, amber and green. Requiring only a mains input per channel the Quartet can be connected to any standard lighting controller to provide bright and efficient stage lighting controller to provide bright and efficient stage lighting. All four channels lit simultaneously provide 1200 Watts of white light. Dimming can achieved using a standard dimming controller e.g. NJD logic 8000s. Please note this unit requires a controller!