I had been 3 Solar Spot Trio in use and had a total of three years is also very satisfied with this. To illuminate a staircase, which is only necessary if it is well used, I once bought this trio with the PIR sensor. Initially a model and later with increasing dropouts of this sensor has given up the ghost after a few weeks. Reason: water in PIR sensor.
The rest of the lights still works perfectly, but it is not the function of the PIR sensor.