This attachable safety GFCI Plug earth leakage protection device is widely used to replace the general PLUG of your power tools and home appliances, such as pressure washer, hair blower, hairdryer, vacuum cleaner, air conditioner, bathroom heater, aqaurium, pool pump and all the Christmas cords that plug into each other. It will trip off when it detect current loss, to protect people from electric shock. </br><br> <b>How to use?</b><br>(1) Cut off the original electrical plug and wired up this GFCI plug.<br>(2) Place the Hot wire under the Brass-colored screw. Place the Ground wire under the green-colored screw. Place the Neutral wire under the silver-colored screw. <br>(3) Install the strain-relief clamp (the u-shaped piece of metal) over the outer cable exterior to help prevent a pulling force from pulling the wires out from the screws that are supplying the electricity<br>(4) Test it and make sure the red indicator light is ON before using. <br><br> <b>How to test?</b> </br> (1) Power on <br> (2) Press RESET button, red indicator light ON <br> (3) Press TEST button, red indicator light OFF <br> (4) Done! <br> <br> <br> <b>Specifications</b><br> Name: Replacement GFCI Plug 3-Prongs<br> Rated Voltage: 125VAC, 60Hz<br> Rated Current: 15Amp <br> Residual Current: 5mA <br> Tripping Time: ≤0.1ms <br> Voltage Withstand: 2000V <br> Endurance Test Time: 6000 <br> Limited Current: 250A <br> Color: Black <br> Certificate: ETL <br>