30pcs 1 Channel 12V Level Trigger Optocoupler Relay Module

Feature
1 channel relay module, with photoelectric isolation
High or Low level changeable(by a jumper setting trigger)
The module uses genuine quality relay
With power and relay acof earth wire
GND:Ground
Notice
High Level Mode:the jumper is set between com and gnd (original).
Low Level Mode:take down the jumper, connect VCC to VCC, GND to Control Terminal, IN to 5V, COM to GND.
Package included
30 x 12V 1 channel relay module

Additional information