Description

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product description

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Size: 6.8 CM * 2.1 CM the main chip: NE555 working voltage: dc 5 v features: 1, the relay time delay and power supply is connected. 2, the delay time is adjustable, (0 ~ 10 seconds) 4, add potentiometer can increase the delay time 5, capacitor C1 can increase latency time 6, with input power light 7, a relay and indicator lamp 8, can control the ac 220 v / 10 a device. (maximum control equipment 2000 w) 9, stream with relay protection. 10, the delay time formula: T = 1.1 RC. For example: 100 uf capacitance resistance 100 k T = 1.1 * 100000 * 0.0001 = 11 seconds