An improved incandescent light bulb which is capable of affording increased light efficiency without a resultant increase in either cost or energy consumption. In one embodiment of the bulb, said bulb includes a
Incandescent bulbs require no external regulating equipment, have a very low manufacturing cost, and work well on either alternating current or direct current. They are also compatible with control devices such as dimmers, timers, and photo sensors, and can be used both indoors and outdoors. As...
St64 40W Edison Incandescent Light Bulbs E26 Base Dimmable Decorative Antique Filament Light Bulbs US$0.80 100 Pieces (MOQ) Product Details Customization: Available Color: Warm White Power: ≤40W Start Order Request Contact Supplier Chat Shipp...
These bulbs can be of reflective type, with reflective coating inside the bulb that directs the light in one direction rather than all around by controlling light more precisely. Their low manufacturing cost and the requirement of external regulating equipment resulted in household and commercial ...
Incandescent Light Bulb(白炽灯)IncandescentLightBulb 白炽灯 ByZhangRongpeng IncandescentLightBulb •1Theworkingprinciple •2Characteristic•3History 1Theworkingprinciple •Theincandescentlightbulbmakeslightbyheatingametalfilamentwire(金属丝)toahightemperatureuntilitglows.•Thehotfilamentisprotectedfromairbyaglass...
6.Yaay. We're focused on your friendly household light bulb, the incandescent kind. 耶~ 我们先来看你熟悉家用灯泡――白炽灯。 「奇趣百科」 7.You probably know the company best for its most famous invention, the incandescent light bulb. 你可能最了解这家公司最著名发明——白炽灯。 「当月 CNN...
Incandescent light bulbs work by passing electricity through a thin wire (filament) made of tungsten which then heats up and gives off light. The filament is enclosed in a glass bulb to protect it since it would quickly oxidize and burn out if exposed to air. Most of the power delivered ...
but the 60-watt equivalent of this bulb currently costs $34.98 for a single bulb atAmazon.com. Nevertheless, because LEDs have extremely long service lives, they can becost-effectivewhen installed in hard-to-access locations where the expense of paying someone to the replace the bulbs is high...
【难句注释】 The cost of ameliorating these environment problems along with the rising cost of building a facility as large and complex as a coal-fired power plant. have also made such plants less attractive from a purely economic perspective.由于改善这些环境问 题需要大量资金,而且建造庞大复杂的...
For simplicity, begin by assuming that both have the same economic cost, same lifetime and provide light output of the same quality. If the fluorescent bulb uses less electrical energy than the incandescent one, then replacing the latter by the former is a conservation measure that results in ...