if  frequent or fast switching Energy-saving lamps, the filament will be black, the lamp will be easily broken; LED lights are not affected by the speed of the switching frequency, can always run at high speed. Traditional energy-saving lamp life of 5,000 hours, while an LED life of up to 50,000 hours, life is 10 times that of traditional energy-saving lamps. For ordinary families described as "once and for all."