Features: 1. This is a solid state relay that provides a function similar to an electromechanical relay but has long-term reliability. 2. This 5V solid state relay has 8 channels, each channel 240V 2A. 3. Large load capacity, the rated output load is 2A at 100 to 240V AC(50/60Hz) for general purpose use. 4. Designed with blue KF301 terminal blocks for convenient wiring. 5. There are 8 channels which means it can control up to 8 loads. Specifications: Power Supply: 5V DC(<=160mA) Trigger Signal Voltage: Low Level : 0V - 0.5V low level, Relay is ON High Level: 2.5V - 5V high level, Relay is OFF Rated Output Load: 2A at 100 to 240V AC(50/60Hz) Size: 128 * 61 * 22 mm / 5.0 * 2.4 * 0.9in Weight: Approx. 94g Package Includes: 1 * Solid State Relay 1、This is a solid state relay that provides a function similar to an electromechanical relay but has long-term reliability 2、This 5V solid state relay has 8 channels, each channel 240V 2A 3、Large load capacity, the rated output load is 2A at 100 to 240V AC(50/60Hz) for general purpose use 4、Designed with blue KF301 terminal blocks for convenient wiring 5、There are 8 channels which means it can control up to 8 loads