Among the huge variety of LED lamp lighting is the most profitable in respect to the stream generated by the consumed power, and its value relative to the period operation. But even with these operating parameters, many users do not miss an opportunity to establish control of light intensity.
Alas, an ordinary energy-saving lamp work so it will not, Dimmer It does not give the desired result and the lamp is turned on just after, and at full capacity. To achieve brightness adjustment you need a special dimmable LED lamp.
Content
- What is dimmable led-lamp?
- The principle of operation of the dimmer
- Advantages and disadvantages
- Criterias of choice
- Related Videos
What is dimmable led-lamp?
The classic version LED lamps is a block of semiconductor elements for forming light flux, rectifiers, capacitors, and other components for current stabilization.
Due to the presence of the stabilizer in the food chain of lights, whatever voltage level is fed to the dimmer, the Stabilizer will transform it into a current value.
Naturally, you need to pick power regulator only after reaching the minimum voltage level, therefore, first lamp will give a barely discernible glow or flicker, and then jumps to the brightness of the lighting par value. The same principle underlies the operation of fluorescent lamps, so they also do not get power to regulate directly.
The dimmable light bulbs, this problem is solved by using a special driver, which changes the output current in proportion to the incoming voltage to it. Therefore, by changing the potential difference between the voltage regulator on the LED matrix you will submit a different current, which will change the light intensity.
But, not all dimmable lamps so easy to manage, this is due to the fact that a particular lighting elements may not be suitable for some dimmers. This effect is caused as the dimmer circuit, and the principle of its operation.
The principle of operation of the dimmer
To change the brightness level of dimmers can be applied in a different principle of change of the output voltage.
Most often there are options:
- on. resistor-based;
- on. transformer basis;
- from. adjusting the triac.
According to the control method dimmable device are:
- rotary or keyboard - considered classics;
- sensory - a more modern version, in which there are no movable components;
- remote - be included on the remote, it is now widely used for LED strips power and lighting based on them;
- wi-fi - are widely used due to the installation of specific applications on modern gadgets.
Resistive dimmer generates an operating parameter of a rheostat or variable resistor which is switched in series basic load. With the maximum resistance of resistor outputs the current minimum value and the brightness is obtained also minimal.
Proportionally reducing the resistance connected to the circuit, the operating current will increase, increasing the illumination of the bulb. The disadvantage of this dimmer is a constant wattage, so save energy with them you just will not work.
Transformer device change. intensity lighting space by reducing or increasing the number. turns in the transformer. Transformer conversion method as. the previous one, used to power light bulbs, and later for halogen. lamps. But due to a number of shortcomings today it has lost its popularity.
Triac regulators based on the use semiconductor elements that change the shape of the current curve to the desired value. This is the most common embodiment of a dimming function, as it allows save electricity during the installation minimum brightness. Also indisputable advantage is the ability to set the adjustment range as the brightness and color temperature.
Due to the fact that you need to achieve normal interaction dimmable lamps and light control, you end result is important - that they work in symbiosis. The determining factor is the absence of flashes and other lighting effects, or pops and other noise during operation.
If the dimmer is already selected and installed, and flashing lighting device has a number of light sources, you can try to solve the problem of installing one of the lampshades chandelier instead of a diode lamp bulb incandescent. The best option is the joint acquisition and dimmer and dimmable LED lamps that will provide one hundred percent efficiency.
Advantages and disadvantages
The advantages of the use of dimmable LED lamps include:
- Possibility. increase or reduce the amount of light produced by the LED lamp. flow.
- Select. the most appropriate mode of operation - at home, you can create a romantic atmosphere. or use the main lamp as a nightlight.
- LED. dimmable devices differ significantly longer service life (if a. dimmer connect conventional LED lamp it pretty quickly come to order. due to its limit loads stabilizer).
- It may provide a different temperature. color, changing the degree of perception of space.
- Not. It produces infrared and ultraviolet spectrum, that prevents burnout. objects falling into zone coverage.
The disadvantages of dimmable LED. Bulbs should be attributed relatively high cost and the most light bulbs and. adjusting switch. You may also experience difficulties with the selection of lamps. under the already installed dimmer, and vice versa.
Criterias of choice
Manufacturers indicate quite large. range of parameters for the lamps. Therefore, the choice of dimmable LED. devices necessary to study their characteristics carefully, since the subsequent. replacement in store for you significant costs.
- bulb shape
From forms of dimmable lamps will depend. and the direction of flow, and the possibility of installation in a particular light. such embodiments should be highlighted:
- ball. or fungus - give a diffused flow that may change due. translucency of the material or having a reflective coating;
- point. - provide local illumination in a certain area;
- Tubular. - illuminate the extended space, for example, shop window or corridor;
- decorative. - create the decoration of the room with light.
Wider division shape shown in the figure below for clarity:
- Power
It determines the amount of electricity consumed from the grid. For LED lamps, in comparison with conventional embodiments of this parameter is most economical.
If we equate to the same fluorescent or incandescent lamps, they spend a fraction of kilowatts for dispensing of the same for the light flux. For example, the LED unit power 10W equivalent to 100W incandescent bulb that should be considered when selecting the devices.
- Voltage
Nominal voltage may be dimmable lamp 220 or 12B. But much more interesting for the local inhabitants to focus not only on the nominal value, but also on the functional limits.
For example, dimmable lighting unit can function normally in the operating limit voltage of 170 to 240V. Therefore, if the voltage in your network drops below 170V, you will need a different model.
- plinth
There is a great variety of caps, but dimmable lamps most commonly used E or G. The first is classical thread twisted into a cartridge, and following the coded digits indicate the diameter in millimeters.
For example, the cap or E27 E14 base It shows that these bulbs can be installed only in cartridges appropriate size. Marking G differs from standard caps that contacts are represented by two pins that need to be inserted into the corresponding slots of the cartridge.
- Manufacturer
The quality of the device and its conformity with the declared parameters depends on the manufacturer's company, so the preference should be given to proven companies. Note that pretty well proven Philips company, Uniel.
Of special note is the lamp Gauss, as the manufacturer produces not only conventional dimmable lamps but and models of issuing different levels of light from a conventional switch - they respond to the number of clicks key.
