The best 'mosquito'
This was in one of the electronics mags (can't remember which) and had both a timer and a light sensor, so it was only active for fairly short periods, and also only when the light was below a certain level.
This was in one of the electronics mags (can't remember which) and had both a timer and a light sensor, so it was only active for fairly short periods, and also only when the light was below a certain level.