Relay Module 1 Channel Power Switch with Optocoupler One Way Trigger Expansion Board 30A YYG 2(12VDC)

[HIGH AND LOW LEVEL]-- The optically isolated relay module can switch between high and low level triggers. [PERFECT PERFORMANCE]-- High-quality miniature optocoupler, strong anti-interference ability and stable performance. [STANDARD TERMINAL]-- Adopt 9.5mm black fence type terminal block, standard 30A binding post, stable and reliable, high quality. [SCOPE OF APPLICATION]-- Widely used for Domestic appliance, office machine, audio, equipment, , etc. [OPTIONAL SPECIFICATIONS]-- The 1 Channel Relay Power Switch Module is available in three styles, DC 5V/DC 12V/DC 24V. You can choose the specifications you need according to your needs.