ITEM NAME:Electronics 1 Channel 5V DC Relay Module Solid State G3MB-202P DIY Kit Product Description Description: Electronics 1 Channel 5V DC Relay Module Solid State Low Level G3MB-202P Relay A03B DIY Kit Features: 1. Power supply of the module: The power supply must be DC, and the voltage should match the voltage of the relay. 2. Wiring method: When the signal trigger end has a low level trigger, the relay will be connected and the device will work with electricity. 3. Input section: DC+: Connect the positive pole of the power supply (.Input power: 5V DC (160 mA). Included: 1 X Solid State Relay Module. 0-1.5V state low level relay ON. 2.5-5V state high level Relay OFF. Input section If item is defective after 3 months, you can still send it back to us.