Great product! It gives very good lighting in dark areas
After one week with a used set of batteries, the light is bright enough to read small print from about 5'
I placed these in my hall way, love it the senors work good
The only issue I encountered is that when the first light finally dimmed noticeably after 3 weeks of use, indicating that the batteries needed to be recharged, one of the batteries had already been reduced to a dangerously-low 0
The darker the room, and when motion is paralell (as opposed to movement towards) the more sensitive the lights are
Your battery longevity will largely depend on where you put the lights (our hallway is pretty heavily trafficked), but if you choose to use rechargeable batteries, be sure to top them off before the lights show significant dimming to get the most life out of them