Hi I have a led candle with 24 color remote I purchased off eBay. I took apart removed the insides it used 3 aaa batteries 1.5v each . I then took a cell phone charger 5v and attached it ! It worked ! Ant the application I used it on has worked the last 6 years and still works ! I feel safe but I’m making a lot more of these little electrical lights are they safe ???? They will go into 1000$ + art pictures thank you for your time and read be well