Do smart bulbs need a hub?

Short answer: most smart bulbs you can buy in Australia today do not need a hub. The bulbs on the shelf at the big retailers are mostly Wi-Fi or Bluetooth, and they connect on their own. A hub only comes into it for one kind of bulb, and even then it is more about reliability than a hard rule.

What a hub actually does

A hub, also called a bridge, is a small box that plugs into your router. Some bulbs talk over low-power wireless radio, mainly Zigbee or Thread, rather than Wi-Fi. Your phone and router do not speak those languages, so the hub sits in the middle and translates. It also keeps every bulb in sync, which is why hub systems stay quick even with a lot of lights.

Wi-Fi and Bluetooth bulbs: no hub needed

The most common smart bulbs skip the hub entirely. A Wi-Fi bulb joins your home network the way your laptop does, so you can control it from the bulb's app or a voice assistant anywhere you have internet. A Bluetooth bulb pairs straight to your phone, which is the cheapest way in, but it only reaches about ten metres and usually suits one person at a time. For a bedside lamp or a first globe to try, this is all most people need, and it is why most shoppers never buy a hub at all.

Hub-based bulbs: when one earns its place

Bulbs that run on Zigbee or Thread need a hub to reach your network. That is an extra box and an extra cost, so why bother? Three reasons: they respond faster, they keep working when your internet drops out, and they do not crowd your Wi-Fi once you have dozens of them. Lighting a whole home, or chasing the snappiest response, is where a hub pays off. For one or two globes it is usually overkill. For the wider trade-off beyond lighting, see do you need a smart home hub?.

Does it work with your setup?

A hub decides how a bulb connects. It does not decide what controls it. Before you buy, check the bulb lists the system you already use: Amazon Alexa, Google Home or Apple Home. Matter, a newer standard that most brands now support, is making this less of a minefield, because a Matter bulb is built to work across all the major platforms. If you are still deciding which platform to build around, choosing a smart home ecosystem walks through it.

So, do you need one?

For most people starting out, no. A Wi-Fi or Bluetooth bulb does everything you would want from one or two lights, with nothing extra to buy. Reach for a hub when you are fitting out a whole home, you want the fastest and most reliable control, or you have settled on a bulb range that runs on Zigbee or Thread. Whatever you choose, match the fitting your fixture takes first, so the bulb physically fits.