The Hanukkah menorah (also called Hanukia) is a nine-branched candelabrum lit during the eight-day holiday of Hanukkah, as opposed to the seven-branched menorah used in Temple times. The Menorah is a really important part of the tradition of Hanukkah. It is why we call the holiday “the festival of light”.
We place the candles in the menorah from the right to the left. When we light the menorah we say the blessings for the candles. We light the menorah from the left side to the right side.
There are many different styles of menorot (plural for menorah). In most cases the Shamash (the helper candle) is in the middle or to the left side. Some are made for burning oil and some for candles.
Tp be considered kosher the shemash has to be higher than the other candles.