LED light bulbs

The newly bought LED light in your home, after the power is turned off, the light bulb is still flashed and checked. The zero line fire line is not connected correctly. What is going on? Is there any way to make it not flash? LET me answer for you:

First, the LED light is a light with a light-emitting diode as a light source. Conventional spotlights mostly use halogen lamps, which have low luminous efficiency, relatively high power consumption, increased temperature of the exposed environment, and short service life. LED light sources are far superior to traditional lighting fixtures in terms of lighting principle, energy saving and environmental protection. Moreover, the unidirectionality of LED illumination forms the perfect support for spotlight distribution. LED spotlights are mainly composed of outer casing, lamp bead, aluminum base plate and drive.

Second, the reason for the LED light flashing with a period of time, the driver is broken, the largest proportion, followed by the lamp, the drive power and the light board have a matching problem will also have this phenomenon, that is to say There is a quality problem in one of the driving power supply or the lamp bead on the lamp board, which does not match. If it is changed to the driver or the same, it is a problem with the lamp bead on the lamp board.

2. The reason for the flickering is that the 1 lamp is turned on and off, and there is a problem that the strong electric field 3 itself is around the zero line 2. Closed zero line is common. 3, there is a reason that can cause the fluorescent lamp ceiling lamp and the energy-saving lamp LFD lamp to turn off after the lamp is turned off. The switch controls the zero line if the lamp has this problem, and the load line under the main gate is reversed, if individual flash Put the flash on the lamp position and change the zero fire, let the switch control the fire line. The other is that there is a small light on the switch. Turn off the light and turn it off. Just take it off.

4. In the vast majority of cases, the switch control is installed on the zero line. When the switch is in the off state, the live line is still connected. The light is always in the charged state, so the light will flash after the light is turned off. This situation is not limited. Appears in the LED, if the ordinary fluorescent lamp is in this case, there will be a flash. But the bidirectional switch you said is always charged. This is not true. If the bidirectional switch is properly installed (controlled to be installed on the live wire), it will not be charged after the lamp is turned off. However, this situation is not a quality problem. The light will flash because the light is still charged. You can knock down the main gate of the house. If the light is still flashing, it is not normal. Under normal circumstances, the ordinary household circuit, the neutral line. All are not charged, as long as the switch control is installed on the fire line, the electricity is disconnected, the light is not energized, naturally it will not light up.

Third, the LED light source does not stop flashing or the best possible cause:

1) LED lamp bead does not match LED driver power supply. Normal single foot 1W lamp bead is subject to current: 280-300mA, voltage: 3.0-3.4V. If the lamp bead chip is not full power, it will cause the light source to strobe. When the current is too high, the lamp bead can’t be withstand and it will be turned on and off. In serious cases, the gold wire or copper wire built in the lamp bead will be blown, resulting in the lamp bead not shining.

2): It may be that the drive power supply is broken. Just replace it with another good drive power supply and it will not flash.

3): If the drive has over-temperature protection function, and the heat dissipation performance of the luminaire cannot meet the requirements, the drive over-temperature protection will start to work, for example, the 20W floodlight cover is used to assemble the 30W luminaire. This will happen if the heat dissipation work is not done well.

4): If the outdoor lighting also has a strobe light, the light is in the water. The consequence is that it will not light up when it flashes. The lamp bead and the drive are broken. If the drive is waterproof, if it is good, it will just break the lamp bead and replace the light source.

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