Cutie de pantofi cu LED-uri de zonă

Finishing:Surface anti-ageing electrostatic spray processing Super resistance to corrosion

Installation height:4 – 12M

Fixing:Top or side fitting ø60 or ø76mm, angle can be adjustable

LEDs are energy efficient, but they're far from perfect. 40 percent - 60 percent of the electrical power they consume is converted into heat. It is this byproduct of LED lighting that makes thermal management components usurp the host's role in the bill of materials (BOM). Products that sell dirt cheap on the market most often have compromised thermal management. LEDs do not fail immediately, but consistently operating LEDs above the maximum junction temperature limit will cause nucleation and growth of dislocations in the active region of the diode, yellowing or carbonization of the encapsulant, phosphor thermal quenching, and early failure due to thermal runaway. The rate at which the performance of an LED degrades is highly dependent on the temperature at the p-n junction. Beyond the prescribed limit of junction temperatures, every 10 degree increase will cause the useful life (defined as 70 percent lumen maintenance) of the LED to be reduced by 40 percent or more. Considering the fact that most street lights incorporate PLCC packages which have poor resistance to thermal stresses, thermal management becomes an essential factor in suppressing the onset of temperature-related failure mechanisms in these LEDs.

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