Commentaire sur Zacharie 4:2

with its oil - bowl on top of it as in (Josh. 15:19): “The upper springs”. This is an expression for a spring, [hence] a sort of large round bowl.

and its seven lamps A type of vessel into which oil and wicks are inserted.

seven tubes each Seven small tubes come to every lamp, for the oil flows from the bowl through those tubes into each lamp.