The Fourth Day of Kwanzaa (December 29)
On the fourth day of Kwanzaa, the black candle is lit at first, then the utmost left red one, then the farthest right green one and at last the next red candle, placed at the left hand side of the black one, is lit. It represents the 4th principle, i.e. Ujamaa (oo-jah-MAH) or Collective economics.
The fourth principle is then discussed with the present members. The Unity cup is shared and the candles are turned off.