LED lighting products have become commonplace in today’s society. With a 75% decrease in energy consumption and a longevity 10 times better than halogen light bulbs, it’s no surprise that the majority of Australians are moving towards a more energy efficient route. But what makes these devices so much more reliable and future proof compared to their traditional counterparts? Well, there are many reasons but for today we’ll be focusing on the quality assurance side of the manufacturing process and in particular, the LED Aging Test.
When a LED product malfunctions the problem usually originates from the welding process (incorrect welding temperature, prolonged soldering time) or the quality of the LED itself. To prevent those problems from occurring, manufacturers trusted by JH Market maintain a controlled welding process and the LED Aging Test.
So what is the LED Aging Test? It’s essentially a reliability test to determine if the LED product meets Australian standards. The LED product also benefits from this vigorous testing as it enhances the performance and stabilization of the product itself.
Here is a general breakdown of a standard LED Aging Test.
1. LED products are layed down on aging racks. 2. These products are then connected to the aging machine to test all components of the products, not just the LED components. 1. Testing is done by exposing the product to different levels of voltages (170 - 258V) and short pulses of high voltage currents at each stage. 2. Each stage is repeated 8-10 times 3. Products have to pass all stages without a problem to pass the test 4. A LED product is then used as a sampling unit to test the longevity of the product, with specialists checking on the product at every 1,000th hour until the light finally burns out. 5. During those few hours specialists will expose the chosen LED product to 3 voltage tests(low, medium and high), from those tests specialists will collect data and report their findings. 6. Specialists will also carry out temperature testing. For example, a LED on a PCB passes if it’s less than 75℃ and a LED on a flexible strip must be less than 70℃. 7. All failed products whether it be incorrect colour temperature, LED burnout or flickering will be marked. If the failure rate is more than 1% production stop and the items will be assessed. 8. Specialists will then separate the LED component from the rest of the product and carry out separate tests for each part of the product in order to find the problem. 9. After identifying and fixing the issue, the product is assembled back together and tested one last time to ensure the product is up to par with the requirements.
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