International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. relay low level trigger Level relay module trigger low 24v 12v Optocoupler Isolation AEDIKO 4pcs DC 1 Channel Relay Board With Optocoupler 12V Relay Module Relay Board Maximum Load: AC 250V/10A; DC 30V/10A With Power and Relay Action Indicator;Trigger Current: 5mA; Optocoupler Isolation Wide Application:Standard Interface can be Connected with Microcontrollers Directly ,The Relay Module Can be Used to Control Various Loads, such as Electromagnetic Relays, LED Lights,Drivers, Motors, Electric Motors, Straws, etc. 1 Channel Optocoupler Relay Module Support High and Low Trigger DC 5V/9V/12V/24V. SKU:011545. Regular price $4.99 USD Easy to Install:Equipped with a Terminal Block and Fixed Bolt Holes on Both Sides (Diameter: 3., 1mm), the Interface can be connected through the terminal block directly