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LED Lights Use Less Energy
LED灯更省电
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LED bulbs use much less power than old bulbs.LED灯泡比老式灯泡耗电少得多。
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They make light with tiny electronic parts.它们利用微小的电子元件发光。
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No hot wire or gas is needed inside.内部无需炽热灯丝或气体。
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Most energy becomes light, not heat.大部分电能转化为光，而非热量。
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An LED lasts over ten years with normal use.LED灯正常使用下寿命超过十年。
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It saves money on your electric bill.能帮你节省电费。
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Cities now use LEDs in streetlights.如今城市街道照明普遍采用LED灯。
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Efficiency is key in modern engineering.效率是现代工程的关键。