ITEM NAME:3pcs 5V Low Level Trigger 1 Channel Relay Module Interface Board Shield dsf QWK Descriptio n Description Material: FR4 Color: picture color Size: 43 x 17x18. 5 mm Double-sided fr-4 circuit board, 1 normally open contact, 1 normally closed contact, power and relay action indication, suction lamp, disconnect indicator; when the signal input has low level signal, common And normal startup will take place. Can directly control various devices and loads; Low level triggers 1 relay module. The low level trigger is the trigger mode that connects the negative voltage of the GND terminal to the trigger terminal. When the voltage at the trigger is 0V or the voltage is low enough to trigger, the relays will snap together. [Wiring method]: VCC is connected to the positive pole (5V) of the power supply, GND is connected to the negative pole of the power supply, and IN is connected to the signal terminal. [Working voltage]: 5V [Static Current]: 4mA [Working current]: 65mA Trigger voltage: 0-2v Trigger current: 2mA [Contact capacity]: 24V10A (AC) or 24V30A (DC) Product list: 3 * 1 channel 5V relay modules We offer you what you need! 3pcs 5V Low Level Trigger 1 Channel Relay Module Interface Board Shield.Low level triggers 1 relay module. Trigger current: 2mA. Product list: 3 1 channel 5V relay modules. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted.