What do the lights on the Philips Hue Bridge mean?

The Philips Hue Bridge has 4 glowing blue lights on top, with some symbols that allude to their functions - but what do they actually mean?

Philips Hue Bridge Not Connecting: 5 Simple Ways To Fix Philips Hue Errors, by LightCheckup.com

Hue Bridge - Philips Lighting HK

💡 The most common problems and issues with your Philips Hue - Yeti Blog

Siri takes charge of your Philips Hue lighting

Philips Hue Bridge: what is it and how important is it for your Hue smart lights

How To Troubleshoot Your Hue/LIFX Connection. — OnSwitch Plus App

Philips Hue Review: the Wall Switch module makes your existing light switches smart - 9to5Mac

Philips Hue Range/Distance Guide: How Far Away Can It Work?

Philips Hue Bridge Matter Support Update Now Available - MacRumors

Philips To Discontinue Support For First-Gen Hue Bridge In April

Philips Hue: Supported lights and devices (Hue compatible)

Philips Hue White and Colour Ambiance Wireless Lighting LED Starter Kit with 3 GU10 Bulbs with Bluetooth & Bridge

The complete guide to Philips Hue: Bulbs, smart features and lots of colors - CNET

How to Reset your Philips Hue Bridge

Philips Hue: Supported lights and devices (Hue compatible)