Some of the more expensive models – especially Philips Hue – require a "bridge" hub to act as a go-between if you plan on using dozens of bulbs – this extends the range you can control the bulbs from.
Some smart lighting pairs with your home wifi network while other models use Bluetooth or a wireless technology such as Zigbee or Z-Wave. Some of the more expensive models – especially Philips Hue – require a "bridge" hub to act as a go-between if you plan on using dozens of bulbs – this extends the range you can control the bulbs from.