- Improved text
Shelly Spot Duo GU10
Set the light to suit your mood. With the dimmer slider, you can adjust the brightness of the Shelly Duo bulb. Shelly Duo welcomes you at home and lets you control your lights from your bedroom to your backyard. It even makes it seem like you’re home when you’re not. It’s all about simplifying your life with the smartest WiFi dual white bulb in the world.