Just a regular smart plug/socket, like this for example
TP-Link Smart Plug, No Hub Required, Wi-Fi, Control your Devices from Anywhere, Works with Alexa and Google Assistant (HS100) https://www.amazon.com/dp/B0178IC734/ref=cm_sw_r_cp_apa_36rpAbZJEMG2W
It's wifi controlled so you can use an app...