Installation of these lights was really quick and easy. The only downfall was the screws provided were cheap and not heavy duty at all. All of the screw heads snapped off when attempting to secure the lights to my wood deck. I luckily had a bunch of stronger, exterior screws that worked better. Quick, easy fix! Function wise, the location of these lights only get about 2-4 hours of direct sunlight a day and I haven’t had a single problem yet with the light coming on when the sensor is triggered. The LED lights are super bright and make a dark, unlit outside staircase very visible when needed. Also, the sensor picks up from a good distanceangle away so that the lights are activated before I approach my stairwell.