Robotbanao 2 Channel DC 5V Relay Module for Arduino, Micro Controller Board Electronic Hobby Kit

A relay is an electrically operated switch having a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. This is a 2 channel relay module which can be used to activate up to 250V AC and 30V DC. The switch may have a number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof. Power indicator - Green | Relay status indicator - Red | 8550 transistor-driven | Strong driving ability | Fixed bolt hole | Easy installation | Diode effusion protection | Short response time | Board mode selection | Real-time working status indicator LxWxH : 43 x 43 x 17 mm This 2 channel relay module can be used to control various appliances, and other equipments with large current. It is ideally suited to controlling larger voltages in your project through Wi-Fi.