Hi, I have a pile of the Kmart snow fall lights I want to run this year. These run at 5volt. I have a 12 volt controller I would like to run these off. Would using a 12 volt to 5 volt convertor be ok for this? They only come on for various parts of the show. (I have also added a pile of silicone to these at the top as I am aware of the issue with water ingress with these lights).