Analytical reasons lumen LED lamps

　　Light decay of LED lighting products is light weak in the transmission of the signal strength, but at this stage the global LED lighting manufacturers who make bad light level LED lighting products are different, there are also high-power LED lamps light fades, and the temperature which has a direct relationship, mainly by the chip, phosphor and packaging technology decisions.

　　Currently, the light fades of LED lamps on the market may be the most important issue to civilian lighting. LED lamps for light decline mainly have in the following two factors:

　　First, LED lighting product quality problems:

　　1, the use of LED lamps grain constitution is not good, brightness decay rapidly.

　　2, the production process is defective, LED lamps grain heat can not be good to derive from the PIN feet, resulting in LED lamps grain temperature is too high to make the chip attenuation intensified.

　　Second, conditions of the problem:

　　1, LED lighting is the constant current driver, some LED lamps using voltage-driven reasons to let LED lamps attenuation over.

　　2, the drive current is greater than the rated drive conditions.

　　In fact, there are many reasons to lead bad light LED lighting products, the most important thing is heat problem, although many manufacturers are not particularly focused on the secondary cooling products , yet these secondary LED lighting products under long-term use, the light fades extent is higher than cooling LED lighting products. Thermal resistance of LED lamps grain itself , the impact of silver plastic substrate cooling effect, as well as colloidal gold thread and also has a relationship with the light fades .