Why motion sensor in a flood light break down easily?

Motion sensor flood light
Don't buy a motion sensor flood light until you read this? This sounds very familiar to you as it is found in any advertisement you have come across. But trust me, I am not from any light company or supplier for the lights. This is a true experience which I spent money to find out why motion sensor break down easily.
Once a qualified electrician advised me that the motion sensors in the flood light tends to break down frequently and recommended me to change them with a dawn to dusk solar light and a regular (non-motion detector) porch light (probably not a flood light).




One of a logical and good reason given by the electrician is the motion sensor break down due to long period of the direct sunlight exposure when the motion sensor pointed to the Sun. The motion sensor get cook and it often happens right about one year, either before or after the one-year warranty period.

A brand new actual view of 120V 5 WATT LED Security flood lights

Thanks to the video taken from youtube.com

Before you start changing the direction of the motion sensor pointing to, you must find out whether it is a motion detector or a photo sensor built in the flood light.

Some people have mixed up both types.

A photo sensor is made of low quality plastics which will deteriorate in the sun fairly quickly. Unless you aim the photo sensor to North which will reduce the actual amount of solar radiation reaching the sensor lens to make it have a longer lifespan.

Unlike the photo sensor, the motion sensor depends on the material used to build the motion sensor and the way how it built. A good quality motion sensor should be set behind a UV protected lens so that it can last longer. Although both lights will tends to break down if expose to a long period of sunlight.




The difference between placing in a direction of the motion sensor and floodlight

The motion sensor can be pointed in any direction to detect movement within the scope, facing the solar panel south will give a best result, or else as long as it is not east or west where the Sun rise and set.
The floodlight can be faced in any direction. The sun has no effect on the location of the floodlight or the motion sensor in most applications.

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• no connection to the grid;
• can install almost anywhere;
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