Heavy Duty Lamppost Bracket Euro Classic for 5"-7"D Lampposts

How do you adjust these on the lamp post? Have you had any problems with adjustment? How many pounds can the hangers support?

Hi, the 2 halves of the brackets join together and then there a 4 screws that tighten down to the lamppost. The only issue I’ve had with adjustment is customers underestimating the diameter of their lamppost. These are built for commercial sized lampposts so a diameter of 5”-7”. They are able to hold our largest basket, 24” diameter which filled with soil can be  over 70 pounds.