1, Input control signal: Voltage AC 87~143V, Current 6mA.
2, Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch).
3, Compact plastic case and wires connects for easy mount.
4, LED indication for relay action.
5, This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw.

Datasheet: https://www.czh-labs.com/tmp/madeimg/datasheet/f-1022.pdf