The hole in the lamp, where the push button has to go, must be 1.0 cm (0.39 inch) M10 in diameter.
|Dimensions (cm):||rectangular block: 2.1 x 1.2x 0.9cm (0.83 x 0.47 x 0.35 inch)|
|Heigth (cm):||including button 3.3 (1.3 inch)|
Black built-in switch with white push button.
These types of switches are also called 'pressure switches'.
This kind of on and off buttons can be mounted in the foot of:
a desk lamp,
Or in the fixture of a wall lamp.
White push button is clearly visible, easy to use.