Low-end models don’t usually allow you to adjust sensibility. However, if you can spend a little extra, then you might find one that will enable you to adjust the sensitivity from low to high and vice versa. One such example is the Heath HZ-4150-BK Motion-Activated Light with a 30 feet detection distance. It is therefore likely that passing cars may have the effect of turning your device on and off every few seconds. As such, it becomes necessary to lower sensibility.