GEREE DC 12V Delay Relay Module Switch NE555 Timer 0-20s The main chip: NE555 The delay time is adjustable (0-20 seconds), delay turn on The operating voltage: 12 volts DC It can be controlled AC 250V/10A /DC 0~30V/max. 10A equipment. (Maximum control equipment 2000W) Size: 55mm * 30mm * 18mm