As far as I know, you need a bridge for each Hue product. This must be purchased separately (if you do not already have one).
The link would be this: Philips Hue Bridge
With the bridge you can connect any Hue product and you only have to buy it once.
If the price is too expensive for you, I recommend you to look for a used bridge, which you can buy for relatively little money.
Kind regards
Bottle