The picture shows only the blocks that are necessary for the light switch. When you press the switch, the light is switched on or off.
The disadvantage of the light switch is that you still need a flat extra floor between two floors. But then you can use different materials for the ceiling and the floor. You also need a 1×1 cavity in which the signal of the switch is conducted upwards.
Instructions:
Provided all the conditions described above are met, the signal from the switch can be routed upwards with a total of 3 Redstone flares. At the top there is then a toggle circuit as shown in the picture. The set lengths of the amplifiers are important (two times 4 and one time 2). You can connect the Redstone lamps on any side and you can also connect several lamps with a little more Redstone cable.
A cool idea!

A compact and at the same time functional idea!
That's right, it's a flip-flop! Great!
as soon as I set the flare that is one floor block lower everything starts to flash ... please help
Oh, does it make a difference?
I don't mean that in a negative way, but..:
How do you come up with something like that? Curiosity all well and good, but somewhere you have to admit that it's hard to figure out.
But still thumbs up
It is almost only a toggle circuit and how to build the one can be found on the Internet. For the light switch I have then built only a little bit what on it.
Great idea!
This is exactly what I was looking for.
LIKE
really horny big like:D