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12MM Flat Head 12-24V Latching Type Waterproof Metal Push Button Switch with GREEN Led Light TC-186 Switch Thread Size: 12mm Switch Max. Load Rating: 4A 220V AC Switch Operation MTBF: 50,000 cycles LED Life: 50,000 working hours LED Operating Voltage: 12-24V Stainless Steel Body Led Colour -GREEN LED Power Symbol. IP65 Waterproof Rating
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4-channel relay output modules, relay output contacts 250A 10A. Input IN1, IN2, IN3, IN4, the signal line LOW effective. VCC, GND power input, can relay a separate power supply relay power input of JD-VCC. Uses: support all MCU control. the industrial sector PLC control smart home control Wiring: VCC: positive power supply system GND: System power supply negative IN1 - IN4: relay control ports