So, and I have to say they are great !!! (! Have been 4 pieces) to recognize when they light up, is hardly any difference to a proper candle with real flame (except, you sit down in front diiirekt - but who does that?). And a bonus: if I fall asleep on the sofa accidentally (now and then happens: -D), I need not worry about me to make an open fire!
Even my cat finds this decoration very very interesting - but do not bother me, because he can not hurt and otherwise nothing happens.
Other positive side-effects: it creates no soot! You will not drip and can not leak out the last few centimeters in front too! (= No wax spots)
I'm curious how they will make the evening on the terrace in summer :-)