The temperature and currently had influence with led
The led has influence on temperature and currently
Temperature effect
High temperature will cause low light output
The drift of led wavelength due to a variety of output color
Forward voltage will fall down
persistent herd for long time will cut down server time or cause luminous decay.

The currently effect
The drift of instable current due to a variety of color output
If the currently is beyond its normal range value will decrease server time.
The currently effect
The drift of instable current due to a variety of color output
If the currently is beyond its normal range value will decrease server time.

The reason of led damage
There are effect of service time in led light device. they are excess current and excess heat respectively,
The excess current is that the work current over rate current, it cause voltage impact .other damage way is over heat, the disadvantage will reduce service time of led. The invalid of led drive and the led itself as flawed will cause led break,
Those reason is mainly reason to break the led. in general , the excess voltage impact of input power and short circuit of electrical circuit will cause damage to the power and drive of led . and it also cause damage to the component. the short fault of short circuit may cause excess driver.the short circuit of driver electrical circuit will cause damage to the led . the test proved , this is close relate between the led perform and PN junction, the PN junction temperature of LED raise 10℃, the service time will reduce 50%
The rate current of common led is 20mA, the current was raise by various of use reason, and have not taken steps to prevent led, the current will over rate current and to damage the led.
First reason is that supply voltage raise suddenly. a particular component is in short circuit ,to make the a particular voltage
The upper paper is some reason of led fault.

Analyze heat of led

Analyzed the influence of rising the junction temperature of LED upon performance of LED

The heat question remains, we was fully aware of the problem.

because there are currently in the led, it will generates the joule heat and helps maintain the energy. then the heat is raised, it will rising the junction temperature of led and it will decrease transform rate of led .

So through increased currently to rising the luminous , it’s not right ,it’s not science