Fangrui Product Details 1. Specifications: 2. Communication Method: Wifi&bluetooth 3. Lamp Holder: E27 4. Input Voltage: Ac220-240v Ac 5. Power: 9w 6. Color Temperature: 2700-6000k 7. Color: Cool White Warm White 8. App: Treatlife/tuya Smart/ Smart Life App 9. Voice Control 10. Easy Voice Control Of All Smart Light Bulbs Via Integration With Amazon Alexa Echo Or Google Home Assistant, This Includes Turn On/off, Brightness. Ex, You Can Say, "alexa Switch My Smart Light Bulbs Brightness To 50 Percent". 11. Timing Control 12. Come Home To A Dark House - By Using Light Schedules On App And Be Greeted With Warm Light. The Timer Function Enables Smart Led Light Bulb Power On And Off Automatically. 13. Remote And Group Control 14. Keep Connecting This Wifi Smart Light Bulb With Your Home Network (only Supports 2.4ghz Wifi), You Can Remotely Control Smart Light Bulb On Your Smartphone Simulate When You Leave Home, There Are People In The House. Group Control Function Allows You To Control More Than One Smart Light Bulb At The Same Time For Scene Setting. 15. Cool White And Warm White Smart Bulb 16. The Cool White And Warm White Smart Bulb Creating Your Favorite Light Effects With Cool White And Warm White. 17. Notes: 18. Precautions: 19. The Product Only Supports The Use Of Voltage 220-240v 20. The Product Manual Is In German Version 21. Product Support For Treatlife/tuya Smart/smart Life App