Bests & Worsts Reviews from Amazon

The electrical switch seems to be substantial. The gigantic paddle is not vandal-proof but should stand up great to owner/operator use. The hard-push and THUNK is re-assuring. The mounting screws are metric and also too short to get a good grip. You should get some longer US thread screws (commonly available in the home-stores). '#6-32 x 1 in' is a good size. These may be cheaper in the hardware aisle than in the electrical aisle. The switch is 1.75 inches behind the mounting plane. It is not quite as high and wide as a standard 1-gang box, but so close that I would not count the stray space. A rough-count of wires entering the box gives an NEC requirement as high as 13 or 14 cubic inches just for wire-folding space. In a 2x4 box, that is another 1.75 inches. So the total box depth must be about 3.5 inches, the deepest box commonly made, and not always available in the home-stores. It may be better, in some cases, to get a 4x4 (square) box 2" deep, and a "1-Gang Square Mud Ring" (Steel City 52C13 or 52C1458, Raco 8772, Carlon A415D) to mount the switch. This gives ample side-space for wiring, ground, and clamps. I have posted some wiring diagrams (see "Customer Images"). Your switch should say "LINE" and "LOAD" in very small letters. Once you notice that, the wiring should be clear.