Electric candles

Am I the only one fascinated by the concept of electric candles? I have never seen them in the US. As you know in Catholic churches (and maybe other ones too, I don’t know) you have places where you can light candles to remember people or whatever. They have these little candles and matches to light them. In Italy and here in Spain you don’t see real candles much, just the electric kind. In Italy there was a switch on each candle as I remember. Here in Spain you just drop your money in and some electric bulb lights up. They have them in front of the side chapels in large churches. I noticed that on some lots of “candles” (lights) were lit and some not so many. this was for some unpopular saint I guess.