... ' requirements 4. no harmful elements Product FeaturesEnergy saving: High brightness, high efficiency, energy saving more than 80% than normal light; Long ... 000hours (normal incandescent consumes: 1,500 hours lifespan, ordinary energy saving lamps consumes: 5,000 hours lifespan);Stability: Built-in high ... , blue, yellow.Application Fieldsoffices, factories, shopping mall, schools and home, etc.