ST72 - E27 550 Smart Bulb
An Edison-style ST72 filament tube with warm-to-cool white and app control, in an E27 fitting. The vintage tube look, made to be seen in open and pendant fittings.
Everything you need to know
The ST72 is an elongated Edison tube with a visible coiled filament, a vintage shape designed to be on show. It's White Ambiance, tuning from warm to cooler white (about 2200K to 4500K) at 550 lumens, with instant dimming from the app. E27 base. Bluetooth works out of the box; a Hue Bridge adds voice and automations. White only, no colour.
Product features
An Edison filament tube
The ST72 is an elongated Edison tube with a visible coiled filament, a vintage shape designed to be on show. It suits open pendants and exposed fittings where the filament is part of the look.
Tunable white
One white for every part of the day. Shift from a warm 2200 K glow to crisp 6500 K daylight, and every step between. Cool, bright light helps you focus in the morning; a warmer tone winds the room down at night. Set it by hand, or let a schedule move it through the day for you.
Made for screw sockets
This is the E27 Edison screw cap, the most common fitting in Australian homes, not the B22 bayonet. It threads straight into any E27 socket, so check yours before you order.
Deep, smooth dimming
Take the light from full brightness down to a 1% glow with no flicker, no buzz and no sudden jump to off. It's the difference between a bulb that only really has 'on' and 'off', and one you can set exactly where you want it: soft enough for a nursery at night, or a hallway after dark.
The Philips Hue system
Hue is a system, not just a smart bulb. Every Hue product, from bulbs and lamps to light strips and fixtures, joins the same Zigbee mesh and shows up in one app. A single bulb bought today slots straight into a whole-home setup later.
Bulbs, lamps, strips & fixtures
All speak Zigbee and mesh with each other, so every light you add extends the network's reach.
One Bridge runs the whole home
Runs up to 50 lights off your router, and connects Apple Home, Google Home, Alexa and SmartThings.
App, voice & switches
One app for rooms, scenes and schedules, plus dimmers, buttons and sensors that work without a phone.
Start with one light Start here
Add your first Hue light, open the Hue app, and control up to 10 lights in one room over Bluetooth. No hub required.
Add the Hue Bridge When you're ready
Run up to 50 lights, control them from anywhere, set schedules and automations, and connect your voice assistant.
Start small, scale up. Everything you buy today keeps working when you add the Bridge, and everything Hue has made since 2012 still joins the same system.
Works with
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Works with Apple Home
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Works with Google Home
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Works with Amazon Alexa
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Works with SmartThings
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Works with Home Assistant
Works with Matter
This bulb also works with Matter, so it connects to any Matter-compatible platform or controller, not just the ones above.
No extra hardware. Your phone talks straight to the bulb.
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Bluetooth
Your phone reaches the hub over your home network; the hub speaks Zigbee to the bulb, and adds scenes, automations and out-of-home control.
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Zigbee
Works offline
Runs on your home network. Only remote access needs the internet.
Specifications
No specifications match.
- Brightness
- 550 lumens
- Colour rendering (CRI)
- 80
- Rated lifespan
- 15,000 hrs
- Light type
- Warm to Cool White
- Colour temperature
- 2200–4500 K
- Dimmable
- Yes
- Power draw (in use)
- 7 W
- Power draw (standby)
- 0.5 W
- Placement
- Indoor
- Dimensions
- 72 × 164 × 72 mm
- Fitting
- E27
- Shape
- Filament
Common questions
Quick answers before you buy. We test this gear ourselves. Can't find yours? Ask our Melbourne team
No. It pairs over Bluetooth and you control it from the Hue app, up to about ten bulbs in one room. Add the Hue Bridge to run up to 50 bulbs, set automations, control the lights while you're away, and connect to Matter, Apple Home, Google Home and Alexa.
It has a standard E27 Edison screw base, the most common screw fitting in Australia. This is a tall ST72 Edison tube, so it suits open pendants and exposed fittings where the filament is on show.
Yes, fully dimmable from the Hue app, a Hue switch or your voice, with no separate wall dimmer. Don't wire it to a traditional dimmer, as that breaks the smart control. Leave the wall switch on and dim from Hue instead.
It changes white temperature, not colour. This is a White ambiance filament bulb: a range of white from warm, candle-like light to a cooler white, with the vintage coiled filament on show. It doesn't produce coloured light.