What should I do if there is still a corner after the LED lamp holder is turned off? Is there a big difference?

As one of the most widely used lamp products, led lamps play a key role in many places. They are not only energy-saving and environmentally friendly, but also cost-effective and effective. They can not only meet the basic lighting needs, but also cooperate with other products to achieve aesthetic advantages. So today I will give you an example about the usage information of led lamp holder, including common faults, such as the LED lamp holder still has a bright light after it is turned off. We will analyze the reasons and give examples. Purchase can refer to the following.

First, is there a big difference between led lamp holders?

1 Comparison with LED light source with high light efficiency;

The luminous efficiency of incandescent lamps and tungsten halogen lamps is 12-24 lumens/watt, that of fluorescent lamps is 50-70 lumens/watt, and that of sodium lamps is 90- 140 lumens/watt, and most of the power consumption becomes heat loss.

LED light efficiency: It can emit 50-200 lumens/watt light with good monochromaticity and narrow spectrum, and can directly emit colored visible light without filtering.

2. Low power consumption of 2.LED light source. LED single tube power is 0.03-0.06W, DC drive. Single-tube current with driving voltage of1.5-3.5v ...15-18ma reflects quickly, and can be operated at high frequency. Under the same lighting effect, the power consumption is one tenth of that of incandescent lamp and half of that of cathode fluorescent lamp.

3. The 3.LED light source has long service life. Incandescent lamps, fluorescent lamps and tungsten halogen lamps are characterized by electron light field radiation, easy combustion, thermal deposition and light attenuation. The LED lamp is small in size and light in weight, and is encapsulated by epoxy resin, which can withstand high-strength mechanical shock and vibration and is not easy to be broken. The average life span is 65,438+10,000 hours, and the service life is 5 10 years.

4. The 4.LED light source is safe and reliable, with low calorific value, no thermal radiation, cold light source, safe touch, accurate control of light type and light emitting angle, harmonious light and color, no glare, and no substances that may be harmful to health such as mercury and sodium.

5.LED light source is beneficial to environmental protection. LED is an all-solid-state luminous body, which is impact-resistant, not easy to break, recyclable and pollution-free. Reduce the production of a large number of harmful gases such as sulfur dioxide and nitride and greenhouse gases such as carbon dioxide, and improve people's living environment. It can be called "green lighting source"

Second, what should I do if there is still a corner after the led light is turned off?

That's because of the induced current

When the conductor placed in the changing magnetic flux is closed into a loop, the electromotive force will drive the electrons to flow and form an induced current, which means that when you cut off the power supply, there is still a little induced electricity. There is no problem with the quality of LED lights. If the manufacturer wants to solve this problem, it is very simple, and the LED terminals can be discharged in parallel.

As long as a little current flows through the LED, it will emit light, which is why some lights still have a little angle after being turned off.

The above example is about the analysis and treatment methods of common failures of led lamp caps, including the measures that should be taken when the led lamp caps are turned off, and the comparison between led bulbs and other related similar products. From this, we can know that qualified led lamp holders may have some troubles in the later use, but similar to the above, there will still be concerns about falling corners after turning off the lights, which we can completely ignore. It is not the quality problem of the product itself, but the current induction.

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