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With optocoupler isolation, the control signal and the power of the controlled device are isolated, which greatly increases the rigidity of the interference. PWM speed regulation widely used to control the start and stop of the motor. The signal input side can be welded to the terminal or pin itself, compatible breadboard output can be soldered to the terminal or direct wire.
1 x LR7843 Mosfet Control Module Replacement Relay
High Quality CAT.5e 0.3 m Yellow Cable
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Original product
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