led diode light bulb how long could led lights last? - sooperarticles.com

by:Leimove     2019-07-19

Many manufacturers claim that their LED lights produce stable and consistent light within 25,000 to 50,000 hours.Others believe that the average life span of five years is more realistic.They warn that the idea of longevity must be credible and supported.Semiconductor of LEDs, or light-The LEDs consist of a negatively charged layer with free floating electrons and a positively charged layer with an opening.When electrons are activated by current, they flow into the holes of the positive layer and produce light.Led efficiency decreases and brightness decreases over time.Part of the problem is the novelty of LED lights.Traditional lamps already have a good way to test their life.standards.For example, the life of an incandescent lamp is tested by continuously burning a statistically significant number of sample bulbs.Until half of the light bulbs burn out, they are considered to have a life class.Measuring the life time of LED lights is more complicated.This still needs to light up a sample group in a row, but until they run out.LED lights don't go out immediately like other bulbs, and their light will slowly disappear.The LED life hour is the amount of time before the light is reduced to 70% of the original brightness.Using 70% of the original brightness standard, because studies have shown that the human eye is often unable to judge that the light is decreasing until the light is darker by more than 30%.The novelty of LED lights becomes a problem again, as many performance predictions are based on extrapolation data, not real-world tests.Another issue with the claimed 25,000 and 50,000 lifetime is that they do not take into account the failure mode or component failure.Even under perfect conditions, the lights can last between 25,000 and 50,000 hours, and the lights have holes in the real world that can shorten their life.Environmental factors have a huge impact on the life of LED lights.Heat is said to be the primary cause of LED failure.If the radiator of the lamp is insufficient or improperly installed, the lamp will overheat and stop working.This thermal sensitivity is also applicable to the temperature in the room where the light is located, and high ambient temperatures can cause overheating.Other environmental factors include humidity and humidity.LED lights and their accessories are more complex than incandescent lamps.The more parts, the greater the chance of failure.LED lights are vulnerable to voltage and current fluctuations, component failures, connection damage, and phosphorus degradation.In my opinion, the warranty is the best indicator of how long the manufacturer really expects their product to last, with an average of 3 to 5 years for the LED light warranty.                                

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