WAGO 221 extension box for 2 inline connectors

Cable extensions 2-wire using the WAGO 221. Print in PETG, because it is more fire-resistant than ABS or PLA. Secure with M3 screws and nuts. Suggest screws are 14mm with a hex head. I like the box for wago221 inline connectors from https://www.printables.com/model/326881-wago-221-extension-box However, I needed a version for two inline Wago 221 connectors, so I remixed it. I made it for the lamp cable that usually has only wires (live and neutral), so I can extend it; however, it can also be used for other electric appliances that have cables with two wires.