Factors that affect the service life of the LED lamp holder

Factors that affect the service life of the LED lamp holder

1, the transient flow affect the service life of the LED lamp holder:

the transient flow of things is beyond the current through the high power LED lamps and lanterns of high power LED lamps and lanterns of maximum rated current technical data sheet, this may be due to the large current directly produce may also be produced by high voltage indirectly, such as transient lightning, switching power supply of the transient switching noise, power grid such as over-voltage provoked flow. These things are transient, short duration, we usually call it rush, such as 'current peak', the 'voltage peak'. Form the status of the transient flow of things include high power LED lamps and lanterns, turning on the power supply or charged plug of the transient current. High power LED lamps and lanterns of maximum hit after the failure modes are not fixed, but usually causes welding line is damaged, the damage usually consist of a great instantaneous over-current provoked. In addition to incur welding wire burning out, also can cause other local damage near the weld line.

2, electrostatic discharge, affect the service life of the LED lamp holder:

electrostatic discharge ( ESD） Damage is the high level of integration semiconductor device manufacturing, transport, and application of one of the most common transient overvoltage hazard, and high power LED lamps and lanterns lighting system must meet IEC61000 - 4 - 2 specification 'human body electrostatic discharge form' 8 kv contact discharge, in order to avoid system in electrostatic discharge can cause the maximum impact of the failure. LEDPN junction array performance will be reduced or damage. ESD things discharge circuit chip internal failure cause of the high power LED lamps and lanterns, this failure may be only partially function damage, serious word will incur high power LED lamps and lanterns for the damage. About nearly 80% heat energy is converted to the high power LED lamps and lanterns lighting design, thermal management and fault maintenance overheat is its face a battle. Theory and the theory has proved that the performance and life of the high power LED lamps and lanterns is working with high power LED lamps and lanterns of PN junction temperature closely related. When high power LED lamps and lanterns chip junction temperature 10 ℃, high luminous flux is 1% attenuation, high power LED lamps and lanterns, life will be reduced by 50%.