상황
A 220V AC supply feeds a fused line through a pressure mat switch to a LED stair mat, with the return tied to ground for a complete, safe circuit.
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01
Use switch_spst for the pressure mat contact and label it clearly
02
Tie neutral to 0 so the circuit has a single ground reference
03
Fuse the live feed with 10A before the switch to protect the LED load
Reuse for any pressure-activated low-current automatic lighting such as stair treads, walkway mats, or cabinet lighting.