Is the dot on a switch on or off

(1 or | means on.) IEC 60417-5008, the power-off symbol (circle) on a button or toggle, indicates that using the control will disconnect power to the device. (0 or ◯ means off.)

1. Is the dot on a light switch on or off?
2. Is the I or O on or off?
3. Does white dot on a switch mean on?
4. What is O and 1 on switch?

Is the dot on a light switch on or off?

The power off (circle) symbol or “O” on a button or toggle, indicates that using that control will disconnect power to the device. The power on (1) symbol on a button or toggle, indicates that using that control will connect power to the device. Was this worth your time?

Is the I or O on or off?

The line symbol means “power on” and the circle symbol means “power off”. The presence of both (I/O) on a push button means the switch toggles the power. Power symbols are defined by ISO 7000 / IEC 60417 and IEEE 1621, and were recently added to Unicode.

Does white dot on a switch mean on?

The rectangular face of this round hole rocker switch is a basic design that features a white dot marking on the rocker face to indicate the ON position.

What is O and 1 on switch?

The light switch has 2 positions, like a binary bit. In binary 0 represents off and 1 is on. It is the same with light switches - 0 or O is the OFF position and 1 or I is the ON position.