ZSDD52-4S-220V 4 Channel Digital Wireless Remote Control Switch w/ 6 Key Remote Control (AC 220V)
"1""2""3""4" keys on the remote correspond to brown yellow green blue wire on the switch controller successively; To avoid accidents make sure the controller is de-energized before wiring and the power supply of live line and unll line is also off; The red wire connect with live line the black wire connect with null line the white wire is earth line.