1 Chronicles 28:15

Even the weight for the candlesticks of gold, and for their
lamps of gold, by weight for every candlestick, and for the lamps
thereof
These candlesticks were ten, and each had seven lamps, and were placed five on one side the Mosaic candlestick, and five on the other, as say the Jews, see ( 1 Kings 7:49 ) , and the weight of gold for each candlestick, according to the above writer ^F20, was one hundred pounds; and for both candlesticks and lamps, David, by the Spirit of God, was directed to give:

and for the candlesticks of silver, by weight, both for the
candlestick, and also for the lamps thereof, according to the use of
every candlestick;
the weight of silver for them was fixed; of these nowhere else read. Kimchi thinks these were for the chambers of the priests, to give them light when they ate and lay there.