I have just bought an excellent example Headley. My €1.5 mains powered mosquito zapper: a few blue LEDs and (I presume) a resistor bridging the two interdigitating metal combs connected directly to the mains. A flimsy plastic screen has holes big enough for a child's fingers to go through or an adults to easily push aside! Too simple to
amuse Big Clive, but seriously out of line with EU safety standards.