Youngneer 5v Relay Board Relay Module 1 Channel Opto Isolated High or Low Level Trigger

Specification: Material: Circuit board  Control signal: TTL  Rated load: AC125~250V/10A, DC28~30V/10A  Max. switch voltage: 250VAC, 30V   Trigger Voltage: 0-1.5V (LOW); 3-5V (High) Trigger Current: 5mA Max. Current: 190mA Size: 50mm * 26mm * 18.5mm (1.9 inch *1.02 inch * 0.72 inch ) Input Connection: DC +: Positive power supply (VCC) DC-: Connect power negative ( GND) IN: Control the pick up of replay by low level or high level Output Connection: Left Connection: “NO” means “Normally Open” Middle Connection: “COM” means “Common” Right Connection: “NC” means “Normally Closed” High and Low Level Trigger Effective High level trigger when the jumper cable connecting “High” to Short Circuit; Low level trigger when the jumper cable connecting “Low” to Short Circuit; LED Indicator Light: Power Indicator: Green Indicator of Relay Status: Red 100% Satisfaction Guarantee: 12-Month Warranty; No satisfied, Free reason for return; Quality problem, please contact us, we will resend your FREE Replacements or make you FULL Refund.