What is the peculiarity of LED lamps with built-in motion sensors

Hello dear guests and subscribers of my channel. Today I want to tell you about some rather unusual LED lamps, which have built-in special motion sensors.

And I will also tell you where and in what cases it is best to use them. So, let's begin.

Purpose and algorithm of work

Initially, these lamps were presented as an ideal alternative to replace hopelessly obsolete lamps Ilyich in the entrances and industrial premises, but recently they are increasingly used in home.

So the principle of operation of such LED lamps directly depends on the type of sensors, and if a passive type is used, then the sensor detects (through the installed Fresnel lens) significant changes in brightness or ongoing movements of thermal stains.

That is, if you sit motionless under such a lamp with a passive sensor, then after a certain time the lamp will go out and will remain in this position until you start moving.

And the so-called pyroelectric sensor reacts to changes in the background of infrared radiation in a given range, and it will not react to heat from a radiator and a peacefully sleeping cat, but will react on you.

If the lamp uses an active sensor, changes in the interference pattern of reflected waves received by the sensor (now and some time ago) from all objects, including objects behind transparent for these waves, for example, wooden doors and partitions, then these sensors usually have sensitivity settings for movement.

And also settings for the reaction to movement when the illumination is greater than the specified one (to turn on the lamp, for example, only in the dark or in the dark and in the light).

After switching on, the sensor no longer responds to the increased illumination until it turns off according to the condition no movement and setting the turn-off delay time after the last recorded movement.

For example, you entered the sensor's range - the light turned on, then if you move, the time counter is constantly reset. As soon as you leave the sensor zone or stop moving, the counter counts up to the specified time and extinguishes the llama if you did not start moving.

This is how lamps with motion sensors work. Well, now let's move on to the main characteristics of such lamps.

Main characteristics

• Sensor sensitivity angle.
• Sensor range.
• Colour temperature.
• Lamp power.
• The minimum lighting level after which the lamp works.

By and large, the main characteristics differ little from the characteristics of standard LED lamps (for excluding the parameters of the sensors used), so let's move on to the advantages and disadvantages of the considered lamps.

Pros and cons of LED bulbs with motion sensor

pros

1. For full-fledged operation, there is no need to mount additional wiring and install separate sensors. You just need to screw the lamp into a standard base and that's it.
2. Even more energy savings due to the rational use of light.
3. Same advantages as standard LED bulbs.

Minuses

1. More complex construction, which means a higher price.
2. Low-quality lamps with a passive type of sensors can give a significant number of false alarms.
3. A high number of fakes.

Where is it better to install such lamps

This type of lamp is perfect for corridors, cabinets, various technical rooms where you are not stay for a long time and, in my opinion, is by no means suitable for bedrooms, baths, toilets and kitchens.

So, despite its versatility and economy, it is rather a technical lamp for the respective premises.

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