Safe to use caulk to air seal around wires coming into the outlet box through knockout holes? - GreenBuildingAdvisor
170*250*100mm Hinge plastic waterproof box distribution sealed electrical junction box electrical control box enclosure|box punch|box wifibox outside - AliExpress
Sigma Electric 2-Gang Weatherproof Box 2-Gang Gray Metal Weatherproof New Work Standard Square Exterior Electrical Box in the Electrical Boxes department at Lowes.com
Outlet Insulation Stops Cold Air Coming Through Electrical Outlets (DIY) | Family Handyman