BE0025 Solid Relay Module 4 Channel 5v Low Level Trigger for Arduino

Specification: voltage supply: 5v. Channels: 4 channel. Switch max frequency: ≤5khz. Static current: 0ma. - Dc +: positive power supply (by relay voltage power supply). - Dc-: connect power negative. - Ch1: 1 relay module signal to trigger the end (high level trigger effective). - Ch2: 2-channel relay module signal to trigger the end (high level trigger effective). - Ch3: 3-channel relay module signal to trigger the end (high level trigger effective). - Ch4: 4-channel relay module signal to trigger the end (high level trigger effective). Trigger voltage range: - 5v low-level trigger module: 0-1. 5Vdc relay connect (on), 2. 5-5Vdc relays disconnect (off). - 12V low-level trigger module: 0-4. 5Vdc relay connect (on), 5. 5-12Vdc relays disconnect (off). - 24V low-level trigger module: 0-8. 5Vdc relay connect (on), 10-24vdc relays disconnect (off).