An outdoor motion detector light can save electricity and scare off intruders. But if passing cars or the neighborâs dog constantly triggers the light, you donât get either benefit. Climb the ladder to reach the light, taking care not to set the sensor off. You can adjust outdoor lights -- whether they are security floodlights or a decorative coach lamp -- to get just the results you want from the motion detection feature. Have an assistant hold the ladder steady. Blowing trees and bushes don't set them off, but a person, deer or coyote will. your light will go off when there movement in front if it, that why they call it a motion detector light. 1. Often, the wind blowing through leaves and branches can cause the motion sensor to detect motion, causing the light to stay on. 1 0. You can use the motion sensitivity slider to reduce these kinds of motion ⦠Using your Motion Sensitivity Slider. In fact, trying to control an ordinary CFL light bulb with a photocell can cause the bulb to fail. If you do not have any additional outdoor lighting, motion lights can be an inconvenience. If your motion light is on at all times, thereâs a good chance that the sensitivity setting is set too high. It won't go to full power until it's fully dark outside. 1 0. If you have one of those that are outdoor rated, you can ⦠They can also be triggered by sunlight, campfires, or distant IR light sources, etc. This means your light could be triggering by everything from tiny bugs, to cars in the distance, to heavy dust! 1 decade ago. Try turning down the settings on your motion light and do some testing to find out if this is your solution. playing off of ripples on water. In difficult environments, strong wind blowing leaves on trees or similar objects can trigger the motion ⦠99 180° White Motion Activated Outdoor Integrated LED Twin Head Flood Light This LED motion flood light provides 1200 This LED motion flood light provides 1200 Lumens of light output for increased safety, security and peace of mind. DICK R. Lv 5. Place a ladder on a firm surface directly below the outdoor motion light you wish to adjust to remain on. My outdoors don't set off the alarm, they just chime inside when they trip so I can take a look on the cams or out the window. if you didn,t went to come on all the time put a swicth on the line. And the ballast in most CFL light bulbs can't deal with that. Check it out, and turn it down a bit. Source(s): 10 yrs home repair. Unintentional Objects Moving in the Background - False motion detection can occur with anything in the area that may be in motion that has a different temperature than the surrounding temperature. If its adjusted too high, even wind will set it off. To stop unwanted âtrips,â you have to limit the âdetection zone,â the area where the sensor can see moving objects. The exceptions to this are the dimmable CFL bulbs. Place the lantern on the top step of the ladder to light the switch area of the motion light. The heat from the devices can trigger your motion detector and cause your light to stay on as it is perceiving a heat signature. Amico 3 Head LED Security Lights Motion Outdoor Motion Sensor Light Outdoor 40W 3500 Lumens 5000k Waterproof IP65 ETL Motion Sensor Flood Light Exterior Security Light led 4.5 out of 5 stars 4,230 $36.99 $ 36 . There may be things in your environment such as the shadow of a moving tree branch or the sun glinting off a shiny object that may trigger a motion event and send out notifications that you don't really want. The outdoor ones have been there for over a year, and one is directly in the weather with no overhead protection. 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