Pack of three lighting used to illuminate the car descent (box). Working properly, the instructions are clear enough but poorly translated (for lack everywhere). Note that the rechargeable AAA batteries (at least the model I) are not supported: The lights then remain lit all the time (off during 1 second but turns back on), so batteries required standards. The housings are well protected for delivery, containing an ankle and screws for fixing hard, or two velcro enclosure. I used velcro, no worries on the cinderblock. Motion sensor coupled with a heat sensor to avoid detection errors.