Great lanterns - definitely seems like cool white to me...
The lanterns themselves are awesome! I love that all of them turn on and off with one remote, and that they're super easy to assemble. The only drawback really is the color of the LEDs. They're definitely a cool white, but the packaging said warm white on all the LED packs. If you're looking for a warm yellow color shown in the pictures you won't really get them with these.
ProsRemote included works well on all of the lanterns at once
Easy to assemble
Great price for a 10-pack
Great tracking and communication
Easy to hang
Cons"Warm" white is instead quite a "cool" white