Momentary switches only stay in the on or off position while they are held. I am a bit anal about safety so take a meter and confirm that.
Light Switch Wikiwand
Light switch off position. When the eyelid closes we cant see meaning the switch is off. Then turn the breaker off that controls that light. Electronics switches seems to have the metaphor crushed if you do image searches. Turn the light on first. Look at the switch. Confirm that the light is off.
Take off the cover plate. The switch worked with the fluorescent but not with the led. But you are describing a three way switch and the other one was used to turn the light on or off which reversed the function of the one you usually use. The switch cover seems to be split into two parts the two switches on the left seem to be wired into the same plastic block living room and dining room and the hallway and landing light into another plastic box i hope that makes sense. If it is a single pole and not a decora style it should have on and off printed on it and would be impossible to reverse the function. Flipped the breaker on and the light came on with the light switch in the off position.
Had a call out today to a light pulsing on and off dim every couple of seconds and the switch is in the off position its a standard pendant fitting low energy lamp and standard 1g1w switch no dimmer i measured 14v across the switched live. Wall switches turn lights fans and equipment on and off. This cycle may repeat indefinitely resulting in repetitive brief flashing of the lamps and the light inside the switch while the illuminated switch is in the off position. Rocker edit a leviton decora rocker switch. Is this down to induced voltages and a duff low. Maintained or latching switches stay in the on or off position until they are changed.
Light switch only turns off in middle position if the switch is just plain worn out the toggle may disconnect the circuit only when its in the middle position. This indicates that the switch is faulty and if you dont replace it things will only get worse. I have taken the switch cover off and it looks fine to me. But there is a problem. They return to the default position when theyre let go. This metaphor works for electric switches light switches and modern fuses.
As an eyelid opens the eye can see meaning the switch is on. Cant figure it out.