02. 1pcs 5v 1 Channel OMRON SSR G3MB-202P Solid State Relay Module For Arduino 5V Omron solid state relay 240V 2A, output with resistive fuse 240V 2A. Size: 25 * 34 * 25 (L * W * H) Weight: 13g Input Power: 5V DC (160MA) Input control signal voltage: (0-1.5V state low relay ON) (2.5-5V state high relay OFF) Module interface: Input section: DC +: positive power supply (by relay voltage power supply) DC-: connect power negative CH: Relay module signal to trigger the end (low to trigger effective)