"good for mounting on walls or in u/stairs cupboards. A good light, however some crabtree light rear knockouts are brittle black plastic and i have broken a few when ive tried to knockout the ones nearest the edge of the terminal/mountingplate.
"Of the four that I bought, one had a terminal screw that would not tighten fully on the wire. It seemed like the thread had not been tapped fully throughout the terminal block. Eventually I sheared body of the terminal screw trying to get it to grip the wire. The other three were fine."