Treatlife Smart Ceiling Fan Control DS03

Quick verdict

The Treatlife DS03 is a budget favorite for smart ceiling fan control. Out of the box it uses Tuya cloud, but it can be flashed to Tasmota for fully local operation. Check your hardware version before buying — most current units use a Tuya WB3S (Beken) module that needs a serial flash, and Tuya-Convert OTA only worked on early ESP8266 stock.

Standout: Budget single-gang fan and light switch that can be flashed to local firmware (Tasmota/ESPHome) for cloud-free smart home control.

Last checked: 2026-05-31

Compatibility snapshot

Why it stands out

• independent fan speed and light dimmer in a single gang form factor
• flashable to local firmware like Tasmota (most current units need a serial flash; early ESP8266 stock could use Tuya-Convert OTA)
• widely available and budget-friendly

Reasons to hesitate

• stock firmware is fully cloud-dependent via Tuya
• most current units use a Tuya WB3S (Beken) module, so Tuya-Convert OTA no longer works — serial flashing required
• only exposes 4 fan-speed levels, and the lowest two behave the same on many fans

Best for

• budget-minded users who want smart fan and light control and are willing to flash firmware
• anyone already using Tuya or LocalTuya in their Home Assistant setup

Avoid if

• you want reliable local control out of the box without flashing
• you need more than 4 fan speed levels

Privacy and local-control notes

Stock Tuya firmware is cloud-dependent. It can be flashed to Tasmota/ESPHome for fully local control — most current units use a Tuya WB3S (Beken) module that needs a serial flash, while early ESP8266 stock could use Tuya-Convert OTA. LocalTuya also gives local control without flashing.

Home Assistant support: supported · integration path: Tuya / LocalTuya / Tasmota.

Buying reality check

Price notes: One of the cheapest smart ceiling fan switches available. Excellent value especially if you can flash it to Tasmota.

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