our task is to make led street light popular

Time:2014/9/24  keywords:led street light


The current international approach to achieve white light  LED Street Light    three major forms
 a.LED canopy light red, blue and yellow three-color combination of multi-chip light emitting synthetic white; advantages: high efficiency, color temperature control, better color rendering. Disadvantages: Third base shade fades different color temperatures lead to instability, the control circuit is more complex, high cost, which is a great need for improvement.
 b.LED canopy light yellow phosphor excitation chips, synthetic yellow green blue white light emitted by the LED and phosphor, to change the color performance can also add a small amount at which the red phosphor, or both plus the amount of green and red phosphors; advantages: high efficiency, simple preparation, good temperature stability, the color is good. Disadvantages: poor consistency, color temperature, angle changes in the research and development of LED products is a very common phenomenon.
 c. how to make good use of the LED chip to stimulate the synthesis of three-color phosphor white issue. Pros: good color, simple preparation. Disadvantages: The current LED chip efficiency is low, there is UV leak problem, phosphor temperature stability issues to be resolved, which is a major LED manufacturers must issue currently facing.
 The current manufacturing methods mainstream white LED yellow phosphor coated on the GaN-based blue LED chip, part of the Blu-ray excited phosphors produce yellow green, and white light generated by direct mixing blue phosphor is a LED Lighting products layout should pay attention to.

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