when We apply LED will appear frequently plants the question like this, LED welds the time which just started on the product is the normal work, but will lighten period of time later to present the obscure ray, to flash interrupted, the breakdown, bright and so on phenomena, will bring the serious harm to the product. Causes this kind of phenomenon reason to have approximately:
When application product, the welding system regulation has the question, for example the welding hyperpyrexia weld period is excessively long, has not completed against static electricity work and so on, these questions above 95% are seal the process to create.
The aging is the electronic products reliable important guarantee, is the product manufacturing finally essential one step. LED product after aging may promote the potency, and is helpful in the later period use potency is stable. The LED aging test in the quality control is a very important link, but when many often is neglected, is unable to carry on the correct effective aging. The LED aging test is according to the product failure rate curve is the countermeasure which the bathtub curve's characteristic adopts (led light bulb), enhances the product by the reliability, but this method is not essential, the aging test is take sacrifices the single LED product the life as the price (wholesale led products).
LED aging way including constant flow aging and constant pressure aging. The constant current refers to the electric current in any time constantly invariable. Has the frequency question, was not the constant flow. That is the exchange or the pulsating current. The exchange or the pulsation current supply may design the effective value constantly invariable, but this kind of power source is unable to be called as “the constant current”. The constant flow aging conforms to the LED electric current operating characteristics, is the most scientific LED aging way; Crosses the current surge to get older is also one aged method which the factory uses most newly, through frequency of use adjustable, the electric current adjustable constant current carries on this kind of aging, judges LED in a short time by the time the quality life expectancy, and may pick up hidden danger LED which many conventional agings are unable to pick up. From: wholesale LED lights
