Kingbright2.5 V, 4 V, 4.1 V RGB LED PLCC 4 SMD, KAA-3528RGBS-11

This family of LEDs, from Kingbright, consist of 3 chips within a surface mount (SMD) package. The RGB (red, green, blue) LEDs have a water clear lens with a viewing angle of 120°. They come in a variety of different packages with a range of different footprint dimensions.
Their RGB chips together create a full-colour LED, which is able to produce any colour within the visual spectrum, including white light.

Visible Light LEDs, Kingbright