Read this topic at: this link
hog wash! We have to leave a white flood light to have enough light for the cameras to work at night. We were told it only needs "moonlight". We tried a green tinted flodd light in our structure so it would'nt be so bright. That didn't work. We had to turn on our white flood light to be successful. They tell you it needs .5 lumens to work. I think the green floodlight had at least .5 lumens!