Diffuse 4 pin 5mm square RGB LED - common anode

These LEDs contain three separate LED chips, red, green and blue. By driving the three chips separately, you can produce any colour that you wish, including white light.

They are packaged in a 5mm square milky white diffused LED package but have 4 leads, not 2, with a 1.25mm pin spacing (there is one common anode lead and three separate cathode leads - one for each colour).

Made by Optosupply, part number OSTAMA7NE2B. Datasheet is here.