I bought two of these night lights when crossing light to illuminate our not always fully open stairwell must. First, I have the device expects bigger - I first went out of AA batteries - but it is powered by 4 AAA batteries. It is surprisingly small and compact - but still has an enormous luminosity. The compact size turned out later to be extremely practical. Unlike other products with slightly blue LEDs there are beautiful white LEDs - give a very bright, pleasant light. The motion starts up quite early - the specified range of 4-6 m, I can confirm. 15 seconds lights up the light and then dims slowly - very pleasant and perfectly adequate for a night way to the bathroom or to the children, etc. The nightlight can be placed or hung as in our case with a small nail on the wall. In an emergency, therefore is always a "flashlight" at hand, because the device can be set to continuous light. I'm going to other areas in the house (basement - garage access) even ordered more of these lights. Strong buy recommendation!