Despite being one of the most popular smart light platforms on the market, one of the disadvantages of Philips’ Hue system is its need for a bridge. That means getting started with Hue tended to cost a bit more than competing platforms, because to control even one light, you needed a hub.
Source: Gizmodo – Philips Hue’s New Bluetooth Bulbs Make It Cheaper to Try Out the Best Smart Lights