Two-way Relay with Optocoupler Module Relay Expansion Board

Relay contact capacity 250V10A Relay output normally open, normally closed Active low. 5V relay signal input voltage range: 0-5V VCC system power JD-VCC supply to the relay Default 5V relay JD-VCC and VCC shorted it Net Weight: 28 g / 0.99 oz Size: 50 x 33 x 18 mm / 1.97 x 1.3 x 0.71 inch