Can't connect devices to Alexa

So I have two Yeelight Bulbs and the Bedside Lamp 2, when I try to add it it just fails to find any. I’ve tried a bunch clearing the cache connecting to a different server, doing it on the computer and resetting the devices, none worked.
Now I’m trying all this before actually buying Amazon Echo because I wanted to make sure everything worked. Could it be not working because I dont have the echo yet?