They are installed in the UK system, the earth plug is on top. So if you combine them with others, you can see a visual difference.
Toldear Multi Plug Outlet 💡 Extender with Rotating Plug - White
12 Review
Xiaomi Power Strip Surge Protector 3 Sockets 3 USB Black
26 Review
Extender Xiaomi Mi Power Strip 6 CXB6-1QM NRB4025CN, 6 outlets, 10A / 2500 W white 1.8 m
27 Review
Extender Xiaomi Mi Power Strip 3, XMCXB01QM, 3 sockets, 10A / 2500 W white 1.8 m
26 Review
Black 6 Outlet Surge Protector Power Strip with Rotating Flat Plug, 15A 120V, 4ft Cord
12 Review
Power Strip Tower with 14 Outlets, 4 USB Slots, and 6ft Cord - Universal Charging Station by Lovin Product (1-Pack)
11 Review
🌩️ APC Ethernet Surge Protector for 10/100/1000 Base-T Ethernet lines with ProtectNet (PNET1GB)
11 Review
Southwire 34930 Surge Guard 30A: Full Protection Portable with LCD Display - Superior Safety in Sleek Black Design
12 Review