When I first installed the light it did not work the same night nor the following night. I returned it to the store and had it checked when it started working. I took it back to the site where I installed it and it have been working as expected for a week now. I am not sure why it did not work initially but all seems fine with it now.
100
Great light
Lasts most of the night at 50% power while still providing a lot of illumination.