INDUSTRIAL GRADE MORE DURABLE: This NEMA 14-50 outlet is designed for EV charging for long time. Used for charging BMW i3, Tesla, Kona Electric Vehicle, Chevrolet Bolt and other EV. HIGHT TEMPERATURE RESISTANT & FIREPROOF MATERIALS: No worries about overheating or melting, preventing overheating and potential fire hazards. Thickened metal material, high temperature resistant fireproof materialand with stainless steel wall plate. Used in industrial environments, replacing commercial outlets for better safety and workmanship. MORE RELIABLE CANTACT WITH THE WIREThe clearly labeled terminals ensure a secure and reliable connection. Only accepts 8, 6, and 4 gauge Copper Wires (AWG), Neutral wire is required and can be applicable to 125V or 250V applications and up to 50 Amps. COMPATIBLE WITH THE VAST MAJORITY OF ORIGINAL POWER BOXES: Flush receptacle are completely ready-to-wire, shorten installation time significantly. Installed in the garage, you will find it better than a 1