there are a lot of mekoros on sensors , shevet halevi, rjj journal, nishmas avrohom
off hand, sensors are sensors and the key diff is if you want the effect.. as in a hospital doorway and you want to enter where we wait for a goy to go in & hop along w him. to say walking by a cvs on your way to shul where if you KNOW about it we try to avoid , but if it happens its less than a misasek , & a weak level grama , by a derabonon according to most
in your case the sensor is on top of the light and turns on at dusk so not sure how walking by will trigger it , maybe looking over a porch railing. today most lights are led and derabonon keep that in mind when reviewing older teshuvos on light sensors
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