Even the weight for the candlesticks of gold, and for their lamps of gold, by weight for every candlestick, and for the lamps thereof: 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. (1 Chronicles 28:15)
According to Ex. 25:31-40 there was a single seven-branched “candlestick,” or lampstand, in the sanctuary, but for the Temple of Solomon there were ten candlesticks. These latter were perhaps in addition to the original candlestick (see on 1 Kings 7:49; cf. 2 Chron. 4:7). The weight of the golden candlesticks and their lamps was accurately specified. Nothing was left to chance, to be done in a haphazard way.