Light-emitting diode luminaires, known as LED luminaires, refer to appliances that transmit, distribute, and change the light distribution of LED sources, including all the zeros and components needed to secure and protect LED sources except LED sources. And the line accessories necessary to connect to the power supply. Then what is the cause of stroboscopic LED lighting, is it caused by lamp damage, we will learn the solution to the cause of strobe flashing, first we will come to understand the cause of strobe flashing LED lamps, please look down.
Led light fixture
What is the cause of strobe flashing?
What is the cause of strobe flashing, this is related to the driver, if it is a good quality product, the driver uses a constant current circuit, isolated DC voltage output, LED lighting is very stable, there will be no stroboscopic. What is the cause of strobe flashing? There are some products with poor quality on the market. Directly use the mains to pass the capacitor series current limit, double voltage output, about 5 components, so that the LED not only has stroboscopic but also charged. When you buy it, you can see if there is a strobe on a LED with a translucent paper. It is very glaring, but you can also see that you don't buy a stroboscopic product, which is easy to break.
Led light strobe reason
Led light strobe reason solution:
1, LED lamp beads and LED drive power supply do not match, normal single foot 1W lamp beads withstand current: 280-300mA, voltage: 3.0-3.4V, if the lamp bead chip is not enough power will cause the light source strobe phenomenon, 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 thermal performance of the material 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 is the case if the heat dissipation work is not done well.
Led light
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.
Lamp strobe test
The easiest way is to shake the five fingers of the hand apart under the light. If the light is not continuous light, you can see that the finger does not seem to move at a certain shaking speed. This is also the principle of flash speed measurement (measuring speed). .
Using the photosensitive tube to connect to the oscilloscope to observe the light receiving output waveform can also directly see whether the light is fluctuating and its frequency;
When the exposure speed of the camera is faster than the stroboscopic speed of the luminaire, the camera illuminates the object illuminated by the illuminator without using the camera flash. When the brightness of the object changes when shooting the same position multiple times, it can be used as the basis for the influence of the intensity change of the illumination. However, when the shutter speed of a typical camera or mobile phone is greater than 1/50 second, it cannot be distinguished under ordinary fluorescent lighting (a source with stroboscopic light);
"Gyro Tester" measures whether the light source changes according to a certain frequency. It makes sense. Actually, a gyro is used to make a mark on it. Under the light, let it rotate at a high speed to slowly stop, observe the above mark, during the rotation. When you can see the clear mark, the light source flashes at a certain frequency, which is the same as the finger detection. You can know by turning a gyro under the ordinary incandescent lamp and fluorescent lamp.
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