I bought these for my friend that lost her brother she has lots of real flame candles i bet she spends a lot on them so i got her a set of these so the candles wont go out for a long time they work really well great product you can choose to use them together or separate them and place them in different locations throughout your house traditional candles contain lead which can emit harmful substance into the air since these candles run on batteries you don’t have to worry about that or worry about them burning out and wax spilling recommend