从１９９４年照明电器全国统检的结果分析，影响电光源产品质量的关键因素，是钨丝和荧光粉质量低劣引起的。如钨丝的高温性能、绕制性能、丝径一致性没有保证；荧光粉的粒径粗，粒径分布分散等主要关键指标达不到国家标准或行业标准要求。为此在轻工总会和中国照明电器协会的 According to the results of the national inspection of lighting appliances in 1994, the key factor that affects the quality of electric light sources is the poor quality of tungsten and phosphor. Such as the high temperature performance of tungsten wire, winding performance, consistency of the wire diameter is not guaranteed; phosphor particle size is coarse, the distribution of particle size and other key indicators fail to meet national standards or industry standards. To this end in the Light Industry Association and China Lighting Association