1, Polycarbonate plastic enclosure with a NPT 1/2” mounting nipple, LED indicator and pre-wired for a money-saving installation that is easy and quick.
2, Input control signal voltage AC 12V or DC 12V, current 30mA.
3, Output switch SPDT (Single Pole Double Throw), maximum voltage AC 277V or DC 28V, maximum current 10 Amp.
4, Packing list: 1x relay module, 1x NPT 1/2” Zinc alloy conduit locknut, 2x M3x50mm screw.
5, 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.

Datasheet: https://www.czh-labs.com/tmp/madeimg/datasheet/f-1056.pdf