Helping stickers / Building

In order to solve the problem: You can’t accurately identify the switch(a lot of switchs are arranged together)which specifically controls the lamps, the use of stickers features - cheap,easy to implement, through the redesign of the stickers to solve this problem.
Principle: Figures posted on the button, then the corresponding figures in accordance with the actual position of the lamp attached to the white sticker,
which can help people solve the problem.
When turn on or off lights, you can find the figures by identifying the position corresponding to the actual position of the lamp,Press the button that is labeled with the same number.