Zap Zone Defender: Why Every Home Needs One

RoseanneHo

Fourmilab is surrounded on three sides by farmland. In the summer season, bugs are all over the place. Faced with this case, defence in depth is the only possibility: window screens, bats, Odonata on the pond, fly strips on the home windows and swatters in every room, and as the final stage of terminal defence, excessive voltage bug zappers with ultraviolet fluorescent lures. These usually are not elegant units, however they get the job executed. The principle could not be easier-flying insects, whose compound eyes see lengthy-wave ultraviolet light that mammalian eyes do not, are attracted by the lure tube, which appears to emit a dim blue gentle to humans. To reach the sunshine, they must fly between wires electrified with between 4 and eight kilovolts which, when the insect completes the circuit, kill-a-bug. The one drawback (at least if you aren't a flying insect) is that they don't seem to last very long. After a little bit multiple summer, the bulb either begins to flash on and off like a strobe light or just refuses to mild at all.

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