5V Relay Module (Arduino-Compatible) Specifications Operating Voltage: 5 VDC Relay current rating: 10 A at 250 VAC, 10 A at 30 VDC (non inductive) Relay contact: C, NO, NC Connection : GND, 5 VDC, control input (5 to 12 VDC) Dimensions: 1.6" x 1.06" x 0.71" (40 x 27 x 18 mm) Difficulty: Level 3 (intermediate)