A light source including a first plurality of light emitters arranged in a first pattern (195) about an axis. The first plurality of light emitters includes a first light emitter (185, e.g. LED 1), a second light emitter (185, e.g. LED 8) positioned opposite the first light emitter, a third light emitter (185, e.g. LED 2), and a fourth light emitter (185, e.g. LED 9) positioned opposite the third light emitter. The light source further includes a second plurality of light emitters arranged about the axis in a second pattern (200) that is within the first pattern (195). The first light emitter (e.g. LED 1) and the second light emitter (e.g. LED 8) emit light of a first color, and the third light emitter (e.g. LED 2) and the fourth light emitter (e.g. LED 9) emit light of a second color.