The sensor light is installed in my staircase and equipped with an E27 LED bulb. Assembly is easy, if you bring a little knowledge. The 3 settings for sensitivity, switching time and ambient light cover a wide range. You can adjust well and adjust with a few iterations to the desired Activation sensitivity and burn time. If you are staying with no major movement in the lighting sector, then it will shut down despite the presence. A few more movements they bring to light after a few seconds. The only drawback was the yellowish (yellowed?) Base, which has banned the lamp with me from the ground floor to the basement.