Chanukah is an 8 day celebration within the Jewish community. A single light is lit each night on a menorah that should remain lit for at least one half hour after it gets dark.
Typically three blessings are recited during this eight-day festival. On the first night of Hanukkah, Jews recite all three blessings; on all subsequent nights, they recite only the first two. The blessings are said before or after the candles are lit depending on tradition. On the first night of Hanukkah one light (candle or oil) is lit on the right side of the Menorah, on the following night a second light is placed to the left of the first, and so on, proceeding from right to left over the eight nights. On each night, the leftmost candle is lit first, and lighting proceeds from left to right.