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KTNNKG remote control automatic vacuum switch
and neutral line to the "N" port (no need to touch original ground line)
Color: Gold / Black / White
when the battery voltage is higher than 13
Blue led blink
KTNNKG 110V 220V AC 40amps Smart Pump Switch, Water Heater Timer,Wi-Fi+Remote Control KTNNKG remote control automatic vacuum40A Wifi relay switch for power on off only: max load 4400W for 110V or 8800W for 220V, 70% use recommended for safe(For example , the switch will work perfect if your device is under 3000 watts) (Launch Date: Nov 17, 2019) . KTNNKG WiFi timer switch can work with AC 85V 250V: People use 110V in USA,So you can connect hot line to the "L" port, and neutral line to the "N" port (no need to touch original ground line) Do not support device with 2 hot