Strong & Durability]The metal nema enclosure adopted new 1.2mm galvanized plate as raw material with one piece weld for the main body which makes the electric box anti-rust, anti-corrosion and weatherproof. The whole breaker box with high temperature with shiny white painting, can use more than 10 years no rust in outdoors. Smart for Heat DissipationThe nema box designed with a rain hood on top while surround with small heat dissipation vents, inside the rain hood theres a vent for cooling fan installation. These features makes the electrical cabinet good for heat dissipation to prevent your electrical devices stop working.