What You'll Need

Step-by-Step Setup

Verify bulb compatibility: Ensure your bulbs are dimmable (LED, CFL, incandescent). Non-dimmable bulbs will flicker or not work.
Turn off power: Switch off the circuit breaker. Use a voltage tester to confirm power is off.
Remove old switch: Unscrew faceplate and switch. Document existing wire connections.
Connect Wemo Dimmer:
- Black wire → Line (hot from panel)
- Red wire → Load (to light fixture)
- White wire → Neutral (white bundle)
- Green wire → Ground
Secure all connections: Use wire nuts and ensure each connection is tight.
Mount the dimmer: Install into the electrical box and attach the faceplate.
Restore power: Turn on the circuit breaker. The dimmer LED will start blinking.
Download Wemo app: Install and tap "+" to add a new device.
Complete setup: Follow prompts to connect to Wi-Fi and name the dimmer.
Calibrate (optional): Set minimum brightness level to prevent LED flickering at low levels.

Lights flickering: Ensure bulbs are dimmable. Calibrate minimum brightness in app. Try different dimmable bulbs if flickering persists.
Dimmer not responding: Check Wi-Fi connection. Power cycle the dimmer at the breaker. Update firmware via app.
Buzzing sound: Common with some LED bulbs. Try different brand of dimmable LEDs. Check for loose wire connections.
Touch control not working: Clean the faceplate with a dry cloth. Ensure dimmer has proper ground connection.
Won't dim below certain level: Adjust minimum brightness calibration in app settings. Some LED bulbs won't dim below 10-20%.