UL/cUL certified File No.E504391;

Once power up, tests the GFCI within 3 seconds;

Safe & Reliable performance on Self-Test program controlled by MCU;

No power to the face outlet or downstream receptacle if wired incorrectly,but Green Led on Remind users of Incorrect Wiring;

Under regular working condition/full load 20Amp working condition, temperature rise below 20K/33K;

High strength fire-resistant and flame-retardant PC material V-1 per UL94;

Integrated high-strength brass components 0.8mm thickness while silver contact thickness 0.4mm;

Strengthen wiring screws to prevent slipping, torque over 2N.m, (Standard requirement 1.6 Nm);

Long Service-Life dual LED indicator lights, (Green & Red)soft brightness, friendly night sleeping, Service-Life >5 years;

100% testing by Auto-equipment detection, qualified rate 99.99%;

Trip threshold meets or exceeds UL requirements for tripping time <25ms 4~6mA;

Both China and USA patents protected;

Warranty for 3 years;