Do you know what causes the damage of LED downlights and other lamps? ||

by:EME LIGHTING     2021-03-22
In homes, commerce and other places, one of the ubiquitous figures is LED downlights and other LED lighting fixtures, which not only bring light to various places, but also spare no effort to decorate every place, LED downlights and other lamps. They are widely favored because they have the advantages of green, health, energy saving, and environmental protection. As their popularity becomes more and more widespread, people are beginning to worry about its after-sales. No matter how good the product is, it will not be broken and replaced over time. Today, Optoelectronics brings you tips on damage and replacement of LED lamps. First of all, for LED lighting fixtures, there are mainly reasons that threaten their life. Electrostatic discharge events. Electrostatic discharge (ESD) damage is currently the most common transient overvoltage in the manufacture, transportation and application of highly integrated semiconductor devices. Hazard, and the LED lighting system must meet the IEC-standard 'human body electrostatic discharge mode' kV contact discharge, in order to prevent the system may cause over-current shock failure during electrostatic discharge. The performance of the LEDPN junction array will be reduced or damaged. The internal failure of the LED chip caused by the discharge path of the ESD event may be only a partial functional damage, and in serious cases, it will also cause permanent damage to the LED. , Over-current shock is the current applied to the LED exceeds the maximum rated current in the LED technical data manual, including over-voltage caused by over-voltage shock. Overcurrent caused by overvoltage events such as transient lightning strikes, transient switching noise of switching power supplies, and power grid fluctuations. These events are transient and have a very short duration. We usually call them spikes, such as 'current spikes' and 'voltage spikes.' , Overheating damage These damages can be manifested as the immediate failure of the device, or it may fail long after the overcurrent impact event, shortening the working life of the LED. Such as power supply and drive failure. Usually the damage of the LED power supply and driver is caused by the over-current impact of the input power supply and the open circuit fault at the load end. The over-current impact of the input power supply will often cause damage to the drive chip in the drive circuit, and breakdown of passive components such as capacitors. A short-circuit fault at the load end may cause overcurrent driving of the drive circuit, and the drive circuit may be damaged by a short circuit. Photoelectric IF-ICS series LED downlight LED lamp replacement and problem solving LED downlight and other lamps, under normal circumstances, the driver and the LED lamp have a fixed interface. If the LED lamp does not light up, check the driving power and the quality of the LED lamp itself. It is recommended to replace the test with a good driving power supply and LED lamps. Note that when checking or replacing LED lamps, in order to ensure personal safety, please be sure to cut off the power first, and then operate to replace LED downlights and other lamps. LED downlights with high-quality radiator + driving power supply LED downlights represented by LED downlights, a number of new green lighting, run through various places such as homes, commerce, airports, hotels, etc. with its own advantages! Except for special instructions, the pictures in the text are all from the Internet. Shenzhen Optoelectronics Co., Ltd. Optoelectronics is a comprehensive lighting service enterprise integrating lamp design, research and development, production, sales, construction and installation. Provide overall lighting solutions for LED lighting projects such as airports, five-star hotels, commercial buildings, and designated lighting suppliers for domestic airports. Address: Floor, Changhong Technology Building, Nanshan High-tech Park, Shenzhen, Guangdong Province
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