Rashi on Numbers 4:9/רש"י על במדבר ד׳:ט׳

1מלקחיה — a kind of tongs whereby one draws the wick in any direction one wishes.

2מחתתיה — a kind of small ladle, the bottom of which was flat, not rounded (concave), and it had no wall in front (no piece projecting upwards) but only at its sides; and he (the priest) raked into it the ashes of the lamps when he cleansed them out (cf. Rashi on Exodus 25:28).

3נרתיה ITS LAMPS — luces in O. F., the receptacles into which people put the oil and the wicks (not the lights as the word sometimes means; see e. g. Exodus 40:4).