LED lamp with motion sensor: the benefits of choice and principle of operation

LED lamp with a built-in motion sensor was initially positioned as a replacement for ordinary incandescent lamps areas such as porches, storage rooms, corridors, etc. But lately, they are beginning to be used in the home lighting. In this article I will tell you what are the pros and cons of such lamps, as well as what you need to focus in the selection of the light source in order to choose a quality product.

Principle of operation

The main function of the motion sensor is considered to be the response to moving objects and the inclusion of lighting depending on the ambient light.

And it is not the movement of the sensor picks up, and the heat emanating from the body, ie, infrared radiation, which, after passing through a special Fresnel lens, hits the sensor, and when this radiation sensor caught, is commanded to switch the LED lamp, and then begins the countdown time to disable Sveta.

Often these sensors are also monitored and the level of illumination. This ensures non-operation of these LED lamps in the daytime.

A significant drawback of these products is considered to be quite a large number of false positives due to the fact that the sensors respond to absolutely all sources of heat. For example, light may well operate on a working air conditioner or a hot radiator.

The main characteristics of the LED lamp with the motion sensor:

1. Operating voltage: up to 240 V.

2. Hours after the light.

3. Cartridge.

4. Operating temperature (in most cases it is from -20 to +45 degrees).

5. Low light.

6. actuation angle.

7. Range sensor response.

8. The number of diodes in the lamp.

9. illumination level, after which begins to operate the lamp.

10. Lifetime.

Existing types of controllers

Currently, two types of controllers are implemented that differ in the method of receiving a signal:

active. Modification is more expensive, since special lamp unit is integrated, which itself emits the wave and compares the reflected signal. And if the wavelength is changed, the illumination is turned on. This allows to reduce to the absolute minimum of false positives.

passive. These modifications greater were extended, since their price is much lower lamps to the active unit. They sensor operates solely on the reception signal, so false positives are much more common.

What are the advantages of LED lamps with motion sensor

The advantages of these products include the following:

1. Enabling and disabling of light occurs without switching devices.

2. Installation is extremely simple, as it uses a standard socket E 27.

3. Such products are fully possess all the positive aspects of ordinary LED lamp.

4. Even greater energy savings by operating the light only at certain times.

5. High efficiency of up to 50 000 hours.

6. Affordable price.

The disadvantages of such lamps include:

Since the sensor is used, it is quite sensitive, if such lamps will be installed in room, where in addition to the people as there are pets, false positives are fairly frequent phenomenon. Corrects a position fine adjustment or installation of an additional sensor.

In addition, not only animals can be a source of false positives, but just as warm air from an air conditioner or heating of the battery, can trigger the inclusion of the bulb.

How to choose a lamp with sensor

So you've decided to buy a similar product, for example, in the corridor. When choosing a device, note the following:

viewing angle. Miniature lamps with integrated sensors typically have a viewing angle equal to 120 degrees.

Radius of operation. This is a very important parameter and how it will be more, the better.

Power and lighting efficiency. The number of used diodes and power characterizes the quality and strength of the bulb glow.

Setup and installation

Before you install a light bulb enables configuration of the sensor to minimize false positives. But remember the number of places where the lamp will burn almost constantly, regardless of how you set up the sensor:

- Near the fans, air conditioners, radiators.

- In areas where high traffic machine (heat from the engine also trigger switch lamp).

- In areas of electromagnetic interference.

By installing the LED lamp with motion detector on the ceiling (over two meters), you will get the maximum coverage of the room. A wall mounting reduces tripping angle of 120-180 degrees.

Output

Despite the presence of some of the limitations and peculiarities of using LED lamps with sensor movement, they just remain an ideal choice for lighting entrances, warehouses, etc. podsobok buildings.

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