Why do LED lamps use immersion test line?

  一、 After the production of LED lamps and lanterns, there will be dark light, flashing, fault, intermittent lighting and other phenomena, sometimes the products made simply do not light. LED lamps can not be as long as the expected service life, affecting the quality of LED products. There are three main reasons for the above phenomenon of LED. namely:

    1. When using led to make products, there are some problems in the welding process, such as too high welding temperature, too long welding time and no anti-static work. All these are caused by the imperfect management in the process of LED packaging.

    2. The quality of LED itself or LED quality caused by manufacturing process is not good.

    3. The heart of LED lamps and lanterns - the quality of LED driver itself is defective.

    二、 In order to prevent the damage of LED lamps caused by LED quality problems, or to prevent LED lamps from being damaged in the packaging process, we generally take three preventive measures. 1. The aging test of LED driver should be conducted before the assembly of LED lamps to ensure that the LED driver is good before assembly. 2. Control the welding manufacturing process. 3. LED products were soaked in LED for aging test. Among them, aging test with LED soaking is an essential link in the production of LED lamps and lanterns. Aging test of LED products is an important measure to ensure the reliability of electronic products, and is the last essential step of product production.

    三、 LED lamps and lanterns can improve the efficiency after being soaked in LED for aging, and help to stabilize the efficiency of later use. Led aging test is based on the characteristics of the failure rate curve of the product, that is, the bathtub curve, so as to improve the reliability of the product. The aging test is at the cost of sacrificing the life of a single LED product, but on the premise of winning customer reputation.

    四、 Led aging test includes two ways: constant current aging and constant voltage aging.

Constant current aging is the most consistent with the current working characteristics of LED, is the most scientific way of LED aging: over current impulse aging is also the latest aging method adopted by manufacturers. Through the use of constant current source with adjustable frequency and current, this kind of aging can be carried out in order to judge the quality life expectancy of LED in a short time, and can pick out many hidden dangers that cannot be picked out by conventional aging. Effective prevention of LED products in the individual led shoddy.

    五、 In a word, if the LED lamp manufacturer wants to survive in the future, it can check whether the LED lamp is waterproof or not in the LED lamp production link if it wants to survive in the future. It is an essential link and the guarantee of LED lamp product quality.