ITEM NAME:5V 1 - Channel Relay Relay Module Optocoupler HL Level Module Trigger for A T1L8 5V 1 - Channel Relay Relay Module Optocoupler HL Level Module Trigger for A T1L8 The module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A Using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA The module Operating voltage 5V The module can be high or low by a jumper setting trigger Fault-tolerant design, even if the control line is broken, the relay will not operate Material: CCL Color: red The power indicator (green), the relay status indicator (red) The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient Module size: 50mm*26mm*18.5mm (L*W*H) Four mounting bolts holes, diameter 3.1mm DC+: positive power supply (VCC) DC-: negative power supply (GND) IN: can be high or low level control relay Relay outputs: NO: normally open relay interface COM: Common Interface Relays NC: normally closed relay interface High and low level trigger options: It is low level trigger when jumper connect to LOW pin t is high level trigger when jumper connect to HIGH pin Package Contents:1 x 1-Channel H/L Level Optocoupler Relay Module Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA. The module can be high or low by a jumper setting trigger. The power indicator (green), the relay status indicator (red).