This 5mm RGB LED contains three LED elements (red, green and blue). Each element can be controlled independently. By varying the amount by which each element is turned on any colour can be created. They are ideal for designing variable coloured lighting effects. This LED has a common cathode which is the longest leg (negative). Features: Diffused LED for even light output. RoHS compliant. Contents: 1 x RGB 5mm Diffused LED - 60deg - 1000mCd - Cmn Cathode.