Datasheet: https://www.czh-labs.com/tmp/madeimg/datasheet/f-1060-20a.pdf

Features:
1, If you are looking for a latching relay with power-off memory, then this module will be very suitable for you. Even if the power supply is turned off, the status of the output switch will not be affected in any way, it will remain in the state before the power was turned off.
2, Input control signal: AC/DC 12V. Support input control signal type AC, DC COM+(Sink NPN) or DC COM-(Source PNP).
3, Output switch SPST (Single Pole Single Throw), rated current and voltage 20A / 250VAC or 20A / 30VDC.
4, Polycarbonate plastic enclosure with a NPT 1/2” mounting nipple, Pre-wired for a money-saving installation that is easy and quick. This is a simple and practical passive relay module, which is very convenient to use. All wires lead out via 1/2” mounting nipple, it can be flexible mounting with your junction box / outlet box. Two screw mounting holes are convenient for you to fix it on the wall or wooden board.
5, Packing list: 1x relay module, 1x NPT 1/2” Zinc alloy conduit locknut, 2x M3x50mm screws.