KAUF A21 RGBWW Smart Bulb with ESPHome, Compatible with Tasmota, Made for Home Assistant......
Product details
| Management number | 241810938 | Release Date | 2026/07/18 | List Price | US$9.10 | Model Number | 241810938 | ||
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KAUF A21 RGBWW Smart Bulb with ESPHome, Compatible with Tasmota, Made for Home Assistant
Five independently controllable LED channels: Red, Green, Blue, Warm White, and Cold White.
Runs ESPHome out of the box for 100% local control without flashing, soldering, editing YAML, or hoping tuya-convert works.
Connects natively to Home Assistant without going through a cloud connection or requiring a third-party App to setup or connect the bulb. ESPHome HTTP API allows use without Home Assistant.
Reprogrammable with other ESP8266-compatible firmwares. Easily integrates into any existing MQTT system. Compatible with Tasmota. Flashing of WLED bin files is not supported, as WLED does not support both 1MB flash and Over-the-Air flashing. Please do not try to flash a WLED bin file on these bulbs. KAUF Smart Bulb Update v1.7 adds WLED support into the stock firmware.
A21 bulb shape slightly larger than most standard bulbs, E26 base is typical for most US bulbs.
Firmware version 1.7 adds support for controlling the bulb from WLED or xLights via DDP.
Firmware version 1.8 adds options to adjust max power and fade length.
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