Foshan Shunde Beon Electric Co., Ltd.Contact us
Foshan Shunde Beon Electric Co., Ltd.
[China]
Features
This series of products is specially designed for street lights and tunnel lights. It has high power factor, low standby power consumption, high reliability, good heat dissipation, and comprehensive protection. Conducive to the design of LED lights.
There are three main and common dimming methods for lamps in outdoor lighting projects. These dimming techniques are all dimmed based on changes in LED drive current input. According to different circuit systems, it can also be divided into analog dimming and PWM dimming.
This dimming method is called pulse width modulation (PWM). This method is to adjust the driving current to have a square wave shape, and its pulse width is variable. By modulating the pulse width, it is transformed into modulating the continuous lighting time of the LED lamp, and at the same time changing the input power, thereby achieving the goals of energy saving and dimming target.The frequency is as usual, about 200Hz~10KHz; due to the hysteresis of human eye vision, the sparkle phenomenon produced by the light source during the dimming process will not be felt. The advantage of this dimming method is that it can improve the heat dissipation performance of the LED. The disadvantage is that the overshoot of the driving current will definitely have a certain impact on the life of the LED chip.
This dimming method is called imitation dimming method or linear dimming method. The advantage of this dimming method is that when the driving current linearly increases or decreases, the impact on the life of the LED chip during the overshoot of the driving current is reduced, and the dimming circuit has strong anti-interference properties. The disadvantage is that the change process of the driving current will definitely have a certain impact on the color temperature of the LED chip.
A: Our company was founded in 1996,National high-tech enterprises.Which is focusing on researching and development, production and sales HID、LED lighting and New energy electronic products.
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