Flux Bluetooth smart bulbs does not require a PIN to connect to. If you are being asked for a PIN, its due to one of the following:
1. You are trying to connect directly to the bulb from your phone's Bluetooth settings. The Flux Bluetooth bulb requires the app to connect to and control the bulb. Simply open the app and click on 'Add Device' for the bulb(s) that show up.
2. You have the wrong app installed. Make sure you have the app named "Flux Bluetooth" installed. You can search for it on App Store or Google Play Store or download it here: