Do I need to buy a Philips Hue Bridge to use these bulbs?

No — the bulbs connect via Bluetooth and can be controlled through the Hue app immediately without a Bridge. Philips states a Bridge is required for whole-home control across multiple rooms, away-from-home access, Zigbee integration, and advanced automation routines.

Are these compatible with existing dimmer switches?

Philips does not recommend using Hue smart bulbs with traditional dimmer switches, as this can cause flickering or reduce the bulb's lifespan. Smart dimming is controlled through the Hue app or voice assistant rather than a physical dimmer switch. Standard on/off switches work normally.

What is the difference between the B22 and E27 versions of Philips Hue bulbs?

B22 is a bayonet cap fitting — the push-and-twist type common in most UK ceiling light fittings and standard floor and table lamps. E27 is a screw cap fitting used in some lamps and pendant lights. Check the existing bulb in your fitting before purchasing to confirm which cap type is required.

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Name: Philips Hue White Smart Bulb Twin Pack LED [B22 Bayonet Cap] – Dimmable, Bluetooth & Zigbee Compatible, Works with Alexa, Google Assistant and Apple HomeKit
Brand: Philips
SKU: B0DN6364XG

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Philips Hue White Smart Bulb Twin Pack LED [B22 Bayonet Cap] – Dimmable

A twin pack of Philips Hue White smart bulbs with B22 bayonet fitting — the standard UK cap type — that works via Bluetooth immediately without a hub. Dimmable via the Hue app, compatible with Alexa, Google Assistant, and Apple HomeKit, with Philips stating up to 25,000 hours lifespan per bulb.

Updated 2026-03-17

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