It is a 1‑channel relay inter­face board, which can be con­trolled direct­ly by a wide range of micro­con­trollers such as Arduino, AVR, PIC, ARM, PLC, etc. It is also able to con­trol var­i­ous appli­ances and oth­er equip­ments with large cur­rent. Relay out­put max­i­mum con­tact is AC250V 10A and DC30V 10A. Stan­dard inter­face can be direct­ly con­nect­ed with micro­con­trollers. The work­ing sta­tus indi­ca­tor light is con­ducive to the safe use. Wide­ly used for all MCU con­trol, indus­tri­al sec­tor, PLC con­trol, smart home con­trol.Spec­i­fi­ca­tions: Work­ing volt­age: 12V Chan­nel: 1 chan­nel Item size: 5.6 * 1.7 * 1.7cm / 2.2 * 0.67 * 0.67in Pack­age weight: 18g / 0.63oz