The multi color led light can be turned on or by romote control,using submersible led lights as decor lights can create a sweet atmosphere when you are partying with your friend. Q: Can these underwater lights be used out of water too? A:Of course they can be used out of water. You can use them anywhere you can think of. Such as lighting. outdoor or indoor party decor. Also good for centerpieces. By Ubegood SELLER on April 25. 2020 Q: Can I use one remote to control 4 submersible led lights ? or one remote can only control one light? A:This product comes with 4 submersible LED lights and 1 remotes. but one remote can control all lights. Hope it helps you. By Ubegood SELLER on April 15 . 2020 A:I found that one remote will control all of the lights. I am confused as to why they would send one remote control per light. By L and A on April 15 . 2020