Product description LUMIMAN - Smart Home Expert We are a team specialized in smart home system and enthusiastic to bring the latest technology to our daily life at the most economical and intuitive manner. Specifications Rated power: 7.5W Brightness: 800 lumens (60W Equivalent) Voltage: AC100-240v 50/60Hz Base interface: B22 Color temperature: 2500-9000K Compatibility: B22 standard light Certificate: FCC, CE, RoHS Working temperature: -20℃~40℃ Warranty: 24-month warranty Easy to install, No hub Required 1. Connect your phone to 2.4 GHz Wi-Fi band, not 5 GHz Wi-Fi band; 2. Download "PlusMinus" app from Google Play or Apple App Store, and register with your email address; 3. Power on the smart bulb then turn it off for more than 5 seconds; 4. Use the manual switch to turn it on-off-on-off on (keep time interval not too short, turn off after light is on); 5. Confirm the light bulb is now rapidly flashing; 6. Follow the in-app instructions to complete the installation; 7. How-to videos are available on LUMIMAN YouTube channel about connecting to app, Amazon Alexa and Google Home Assistant.