Lamp mounting bracket and lamp assembly

The utility model relates to the technical field of lamps, and provides a lamp installation support and a lamp assembly, the lamp installation support comprises a height adjusting support, an angle adjusting support and a fastener, the height adjusting support comprises at least two long slotted holes arranged side by side, and the long slotted holes extend along the length direction of the height adjusting support; the angle adjusting support comprises an arc-shaped groove hole and a through hole, and the through hole is located in the circle center position of the arc-shaped groove hole. One long slotted hole of the height adjusting support is connected with the arc slotted hole and the through hole of the angle adjusting support through two fasteners respectively, the other long slotted hole of the height adjusting support is connected with the arc slotted hole of the angle adjusting support through one fastener, and the three fasteners are arranged in a triangular shape. According to the lamp mounting bra