A、建议LED使用时，需串电阻作业，以防止大电流或大电压烧损晶片，有部分客户投诉亮度不均及色泽不均，均為大电流或大电压烧损所致。如下电路

In order to protect chip from burning which due to high current or voltage, aresistance is needed when using LED,some customers complained that inequable colour and lustre or inequable brightness, which all because of high current or high voltage. As the picture,

B、举例说明：examples
G晶片在未串电阻的情况下，给电压2.2V，其电流为100mA以上，其发光颜色已趋的于橙色，时间过长会烧损晶片，如下图片：

the color of chip G is orange when there is no resistance and voltage is 2.2V,current is 100mA, the chip would be burned during a long time.