In their defence I've been using TP-Link products for years (Routers, Ethernet over the mains adapters and cameras) and haven't had a single failure until buying the P110 plugs. In comparison I've...

@keithh Same problem (relay continuously switching ON and OFF) with 2 from a pack of 4 purchased from Amazon UK- both had low consumption loads connected. First one failed within the 1 year standard...