
These lights are advertised as motion detecting and can be adjusted to take into account the motion detection distance, the length of time the light stays on after motion is detected and the level of ambient light when motion detection becomes active. In fact, setting calipers are built into the bottom of the piston, which show these parameters. I have purchased four (4) of these bulbs and NONE of the "squat" customizations! At any given setting, the lamp may or may not respond according to the settings. Also, if motion causes the lightbulb to turn on when the "sleep timer" setting causes the lightbulb to turn off, the next motion may or may not cause the lightbulb to turn on. Normally, if you actually touch a lightbulb, it "may" light up, but even that should NOT be expected. I've tried these bulbs in ceiling lights, floor lamps, bedside lamps, and porch lights. The reliability at any given setting was almost ridiculous. ENTIRE waste of money and time. I'm now using LED motion sensors with Zebon sensor bulbs (X001T7HV6P), they have NO adjustments but reliably glow for about 30 seconds (or longer if motion persists) in response to motion when in the dark. Conditions.

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