I installed a diode lamp, and it glows

Nowadays, LED lamps have become very popular, because they are economical, have a long service life, are fireproof and create comfortable lighting for vision. The operation of LED lamps is based on constant voltage. Many people think that the LEDs work due to the supplied alternating voltage, but do not realize that they have a rectifier inside. The input receives alternating voltage, and the rectified voltage is obtained at the output. Very often people ask the question: what to do if I installed a diode lamp, and it glows? To answer this question, you need to consider the conditions of its work and determine the reason in each situation. The main factors of flicker are discussed below.

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Device features

The design of the LED lamp is more complicated than with an incandescent filament. Its main elements:

• Basement
• Diffuser.
• Board with emitters.
• Driver.

The principle of operation is based on the recombination of holes with the transfer of electrons to a different energy level, in the process, there is a glow, it is a consequence of the release of photons. These processes are facilitated by the use of certain semiconductor materials of the LED.

A current limiting element is used to provide acceptable conditions for lamp operation. A resistor is also used for this purpose in simpler circuits.

Important! Sources of a higher quality of light function in a different way: the diode bridge is the cornerstone - it rectifies the mains voltage and supplies it to the LEDs connected in series.

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The reasons for the lamp to glow when the light is turned off

Often the question arises: installed a diode lamp, and it glows - why?

The most common causes are:

• Problems with wiring.
• Using low quality LEDs.
• The glow of the diodes is supported by a resistor.

Situation 1

Often this happens when the backlit switch is open. But if the glow is observed when the light is off, it means that current flows through it, it immediately flows to the backlight, which is located on the switch, from the mains, then to the chandelier and again to the mains.

The current that passes through the backlight performs the function of charging a capacitor. After charging reaches the required level, the circuit starts and a flash occurs, after which you should expect a shutdown, after this process is repeated again.

Important! The disadvantage of this is that the circuit inside the lamp is designed initially for a certain period of time, it is measured by the number of starts. She will work for about 2 months.

Situation 2

A similar situation occurs with non-powerful blocks of LED strips. At the input, they also have a rectifier and capacitor. Therefore, a current will flow through the backlit switch, so the capacitor will recharge on time. In this mode, the tape burns dimly and may flash periodically.

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Selection recommendations

First of all, pay attention to the instructions on the package, on it you can understand the correct principle of use of this lighting device. Most often it is indicated with which devices their use is undesirable, for example, with photocells, backlit switches, timers, brightness controls, etc.

Important! A large number of fakes are sold on the market, which are very difficult to distinguish. If you come across such an LED lamp that burns after turning off, most likely, the LEDs are simply installed incorrectly.

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What should I do to make the lamp stop blinking and glow?

• The quickest and easiest solution is to remove the backlight. To begin, open the switch cover and disconnect the wires from which the backlight is powered.
• When buying a switch, pay attention to the presence or absence of backlight. If it is missing, then the main problem you will not have.
• Connect an ordinary lamp in parallel, this option will not let the energy-saving light source burn in off mode.

Important! When using this method, all the savings will be lost, which is one of the main points of purchase of LED lamps.

• There are situations that the backlight is needed. To eliminate this problem, you will need to connect a resistor in parallel, this will help create additional resistance on the desired section of the circuit. You can buy a resistor in any store where radio equipment is sold. You can connect it in the lamp holder or under the ceiling in the ceiling. A great option would be to use Wago terminal blocks for conveniently connecting a resistor. At the end, you need to put the resistor in the box and enjoy the absence of blinking after turning off the LED lamp.

Important! The resistor will not have a negative effect on the operation of the LEDs. Remember to insulate the resistor with a heat shrink tube.

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Stock footage

In this article, we examined a number of advantages that LED lamps have, as well as some disadvantages, namely LED lamps glow after turning off and what to do to solve this problem. We hope this article was useful to you, and you can easily solve this problem.