Some steps of the project.

Product list:

IR sensor  https://www.utsource.net/sch/IR%20sensor

IR LED  https://www.utsource.net/sch/IR%20LED

Relay  https://www.utsource.net/sch/Relay

555ic  https://www.utsource.net/sch/ne555

Remote control on off circuit

Wireless remote control

Wireless remote control switch

More details, pls check the video on Youtube: