The wall anchors and screws need to be upgraded to a higher quality. I have installed 2 sets of 8ft lights fx 4 lights in 2 garages and used other anchors and screws. The screws supplied are to short to spread the anchors on 1/2 drywall.
Easy to use
Makes connecting the lights simple and easy
Actually, only three were needed and they worked very well.
Nice bright lights, hopefully they last as long as they say.