This is a shell. For the very common 12V power supply.

These power supplies are usually labeled 12V2A or 12V2.1A. Even if they are different brands, their appearance is exactly the same. Here are the outline photos, length 85mm and width 58mm, and screw hole distance about 91mm.

It is recommended to cut the outer skin of the AC wire before threading it in, so that it is easy to pass through the S Corner . Common wire, no E wire. As in the picture. The S Corner prevents the internal wiring from being pulled in the event of an accidental fall.Because the output wire is relatively small, just tie a knot. (20 or 22AWG is enough)

Six M3X8 (or shorter) screws are required for installation.
Mounting on the wall requires two M3 screws or 3M double-sided stickers.

Doesn't Matter

No

0.4 nozzle

20