After much online, and local shopping for an insect eliminater we bought the BK-80D... The unit is large, and effective... I plugged it into a heavy duty dusk to dawn outdoor timer, and the result has been good... I'm not sure if a mosquito vacuum, or trap would have been better, but this unit is pretty straight forward in design... It just Attracts, and Kills insects by the thousands... ~Bottom Line~ We can go outside wearing shorts again without getting eaten alive...