In household, commercial and other places, one of the ubiquitous figure, is
LED spotlights, LED lighting lamps and lanterns, for each place not only brings the bright, also spare no effort to decorate each place, LED downlight etc. All the popular of lamps and lanterns, because they have the advantages of green, health, energy saving, environmental protection, along with the popularity of more and more widely, people began to worry for it after.
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Again good products over time can avoid the bad and the process of change, today small make up to bring you the LED lamps and lanterns of damage and problem of replacement tips.
First of all, for the LED lighting lamps and lanterns, there are three main threat to affect the life of reason: 1, electrostatic discharge events, 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 must meet IEC61000 - LED lighting system
4 -
2 standard human body electrostatic discharge model 8 kv contact discharge, in order to prevent the system maximum impact in electrostatic discharge that may lead to failure.
LEDPN junction array performance will be reduced or damaged.
ESD events caused by discharge path LED chip internal failure, the failure may only be local function damage, serious word can also lead to the LED permanently damaged.
2, maximum impact is applied on the LED current exceeds the maximum rated current in LED technology data sheet including overvoltage caused by CLP.
Such as transient lightning, transient switching noise of switch power supply, power grid volatility overvoltage event caused by over current.
These events are transient, short duration, we usually call it rush, such as peak current, voltage spikes.
3, overheating damage these damage can show the device immediately void, may also occur in shock over current events until long after the failure, shorten the working life of the LED.
Such as: the failure of power supply and driver.
LED power supply and drive is damaged, usually from the maximum impact of input power supply and load on the open circuit fault.
B: input power to shock often causes the damage of drive circuit of driver chip, as well as the capacitance passive components such as broken down.
Load the fault may cause power circuit of the over current drive, drive circuit short-circuit damage may occur.
LED lamps and lanterns replacement and problem handling: LED tube lamps and other lamps and lanterns, in general, drive and LED lights have a fixed interface.
Such as LED lamps and lanterns is not lit, that is about to check the drive power supply and LED the stand or fall of itself of lamps and lanterns.
Suggestions are replaced with good driving power supply and LED lamps and lanterns under test.
Note: when inspect or replace the LED lamps and lanterns, in order to guarantee the personal safety, please be sure to cut off the power supply first, then operation such as
led downlights replacement lamps and lanterns.
High quality radiator + drive power of LED spotlights, the number of columns of new green lighting, with its advantages through household, commercial, airports, hotels and other places!
Note: the pictures in addition to the special instructions, are derived from the network.
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