![Philips Hue on Twitter: "@tom_weaver Hi Tom, the serial number is not on the circuit board. Have you reached out to the electrician that installed them to see if he still has Philips Hue on Twitter: "@tom_weaver Hi Tom, the serial number is not on the circuit board. Have you reached out to the electrician that installed them to see if he still has](https://pbs.twimg.com/media/EKNIf0WXkAAlCeg.jpg)
Philips Hue on Twitter: "@tom_weaver Hi Tom, the serial number is not on the circuit board. Have you reached out to the electrician that installed them to see if he still has
![Philips Hue on Twitter: "@betlem Hi Rutger, thank you for reaching out. The serial number for the lightship is on the box, with the printed text, attached to the power cable and Philips Hue on Twitter: "@betlem Hi Rutger, thank you for reaching out. The serial number for the lightship is on the box, with the printed text, attached to the power cable and](https://pbs.twimg.com/media/ERYAJikXYAE_5Gi.jpg)
Philips Hue on Twitter: "@betlem Hi Rutger, thank you for reaching out. The serial number for the lightship is on the box, with the printed text, attached to the power cable and
![Help!!! Why can't I find a serial number anywhere on this. I have 5 of the same. None of them will connect with the base either. : r/Hue Help!!! Why can't I find a serial number anywhere on this. I have 5 of the same. None of them will connect with the base either. : r/Hue](https://preview.redd.it/qsa27xpdxk051.jpg?auto=webp&s=841438868cacc318fed2310d390f852139b25e60)
Help!!! Why can't I find a serial number anywhere on this. I have 5 of the same. None of them will connect with the base either. : r/Hue
![Philips Hue on Twitter: "@smiller Did you try to put this dumb-bulb in to a different fixture and see if it was reachable then?" / Twitter Philips Hue on Twitter: "@smiller Did you try to put this dumb-bulb in to a different fixture and see if it was reachable then?" / Twitter](https://pbs.twimg.com/media/Co8C_QrUEAQ6rZy.jpg)