華爾街日報周二報導，儘管LED燈泡擁有較傳統燈泡省電80％，並且使用壽命長達10年的種種優點，然而礙於價格過高，使得LED燈泡始終無法成功打進家用市場。
儘管LED燈泡擁有長期節能和減少成本的優點，但普及率仍然有限，原因就出在於價格昂貴，人們不願花更多的錢買LED燈。舉例來說..
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