It is motion activated. Try moving your hand around in front of the light.
Over 6 months start to get dim when needing to change
There is no setting to change the light . It is pretty sensitive to motion
yes. I've done it both ways. The screws come with the light. They also include wall anchors. The 2 I've taped are holding well so far.
I have about six in the area of our home for about two years now without any problems and also two in our garden area in the growing season to come on when animals approach the area . No Problem!
Seems to be - also has another one installed on the ceiling of our shower stall.
Should only turn on when motion detected. Mine work like that.
twist off the back plate counter-clockwise and insert the batteries
As far as I know there is no adjustment