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Green circuit board with four relay blocks and ESP8266 module

Traditions (Generic)

Traditions (Generic) ESP8266 4 Channel Relay Module International Power Cord

SKU CH-B8K8-T49K4

An ESP8266 board with four relays and an integrated AC-DC supply for switched loads

  • ESP8266 Wi-Fi control enables remote switching of four AC circuits
  • Integrated AC-DC supply powers the board directly from mains voltage
  • Four independent relay channels manage separate loads from one module
  • ESP-12F development board layout simplifies custom firmware projects

ESP8266 four-channel relay module

This ESP8266 4 Channel Relay Module combines an ESP-12F development board with an integrated AC-DC switching power supply. It is designed for makers and engineers who need Wi-Fi enabled switching of four independent AC or DC loads in automation projects. The board targets prototype development and custom IoT control applications.

Four relays with on-board power supply

The module provides four relay channels rated for 12 V switching and includes the AC-DC supply so no external DC source is required. It suits installations where a single mains connection must drive both the logic and the loads. Builders needing more than four channels or a different coil voltage will need additional or alternative hardware.

How it compares

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Price $13.99
Pricier than about 90% of the 1,208 comparable items (median $9.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the ESP8266 module control my existing 12 V accessories through its four relay channels?

The board includes four relay outputs that can switch external 12 V loads when wired to the corresponding terminal blocks.

How can I confirm the ESP-12F is running after I apply power?

The on-board status LED flashes during boot and then stays lit when the firmware starts, showing the module is active.

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