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At present, LED lamps and traditional light source lamps have many different places in terms of performance, evaluation and design.
(2) Since the photoelectric characteristics of the LED are very sensitive to the change of the PN junction temperature; the encapsulating resin will rapidly deteriorate under high temperature and strong light irradiation; the long-term optical radiation will gradually reduce the photoconversion rate of the phosphor and lead to the color seat. The target offset. When evaluating the life of an LED lamp, the lumen maintenance rate of the LED lamp is usually evaluated under the condition of limiting the color shift.
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