... the annoying bug, while holding down the ‘charge’ switch, and you will hear a satisfying ‘ZAP’ and ... With two switches: one is power on/off switch, the other is for the light Very Powerful: ... side of the racket handle; switch the mosquito-tracing lamp on by the lamp switch on the face of the racket ... want to stop the mosquito-tracing lamp giving off light, you can switch the lamp off. 4. Keeping the zap ...