This 1-Channel Solid State Relay Module for Arduino is the one-stop solution for your projects with AC loads. Compared to mechanical relays like SRD-05VDC-SL-C, Solid State technology makes this module have longer usage cycles, faster on/off speed, and most importantly, absence of that infamous clicking relay noise. This module uses the Omron G3MB as its base. It can control the current up to 2A@240VAC. Additionally, it is resistant to mechanical shock and moisture-proof.