So now all electrolytic capacitors are marked the life of the under 105 ℃. Such as the most common electrolytic capacitor, life is only 1000 hours at 105 ℃. But if think that all the life of the electrolytic capacitor is only 1000 hours. It would be wrong.
Simply put, if the environment temperature is higher than 105 ℃, then its life will be less than 1000 hours, if the environment temperature is below 105 ℃, then its life span is more than 1000 hours. The life and have a general quantitative relationship between temperature? Some!
A most simple and easy to calculate, the relationship between environmental temperature rise every 10 degrees, life is lower half; On the other hand, every 10 degrees below the environment temperature, life is doubled. This is just a simple estimate, of course, but also be quite accurate.
For surely used in electrolytic capacitor of LED drive power supply, is the inside of the shell on the LED lamps and lanterns, so we need to know the temperature inside the LED lamps and lanterns can know the working life of the electrolytic capacitor.
2. What is the environment temperature of LED lamps and lanterns
Because in a lot of lamps and lanterns of LED and electrolytic capacitor is put in the same shell, in simple terms the environment temperature is the same. And the environment temperature is mainly by heating and heat balance of LED and power supply decision later. And each LED lamps and lanterns, heating and cooling condition is different, so how can we know the environment temperature?