Special-Shaped Bulb Bulb Bulb Bulb General Lighting LED Light Outdoor Lighting Incandescent Light _维菲电子科技有限公司

Special-Shaped Bulb Bulb Bulb Bulb General Lighting LED Light Outdoor Lighting Incandescent Light

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Special-Shaped Bulb Bulb Bulb Bulb General Lighting LED Light Outdoor Lighting Incandescent Light

异形灯泡球泡型灯泡普通照明LED灯户外照明白炽灯

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USD $0.69
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Item No. A-60
Stock num 999999 piece

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Description

电灯 diàndēng [electric lamp;electric light] 用电作光能源的灯

（Electric lamp），准确技术名称为钨丝灯（Incandescent light bulb）。人工光源之一。

它是电流把灯丝加热到白炽状态而用来发光的灯。电灯泡外壳用玻璃制成，把灯丝保持在真空，或低压的惰性气体之下，作用是防止灯丝在高温之下氧化。它只有7%～8％的电能变成可见光，90％以上的电能转化成了热，钨丝灯的发光效率很低，然而，它却是电灯世界的开路先锋。现代的钨丝灯一般寿命为1000小时左右。电灯是根据电产生热的原理制成的。现在的灯泡一般都选用钨丝做灯丝。

Update time：20210527132423