Feature: 1. The relay module is a double‑sided PCB design, made of resin material, hard and durable. 2. Using single‑chip microcomputer as control, stable and reliable performance, strong anti‑interference ability. 3. The high‑power regulator provides sufficient and stable voltage, and has heat dissipation openings to ensure long‑term stable and reliable operation of the product. 4. Using anti‑power reverse protection diodes, short‑term reverse power supply, safer circuit control. 5. Equipped with a junction box and leads, which can be connected to an external trigger switch. Specification: Item Type: Relay Module Material: Resin Power Supply Voltage: DC12V Load: 250V 10A (AC) or 30V 10A (DC) Life: 1 million times Board Size: Approx. 50 x 25mm / 2 x 1in Product Usage: 1. Press the trigger button, the relay is closed and locked, press again, the relay is disconnected, you can also connect an external trigger switch, and trigger with a low level. 2. Household appliances control, various household lamps control, factory equipment control, used for the control of various low-current control high-voltage high-power products.. Package List: 1 x Relay Module Note: The voltage of the DC input terminal must be consistent with the voltage of the relay, and should not exceed the voltage range of the relay, otherwise the module will be burned.