A. incandescent B. fluorescent C. energy - saving D. ordinary 相关知识点: 试题来源: 解析 C。解析:本题考查节能相关词汇。energy - saving表示节能的,使用节能灯泡能大大减少能源消耗。incandescent是白炽灯的;fluorescent是荧光的;ordinary是普通的,都不如energy - saving符合减少能源消耗这一要求。反馈...
The equipments in some rural families also show low efficiency and lead to high energy consumption, such as 36% people are using incandescent lamp, 36% and 26% people are using old refrigerator and washing machine. Table 6. Type and usage frequency of equiments. NoEquipmentUsage percentage...
Incandescent (60 W) 131.4 394.2 525.6 657 788.4 525.6 CFL (20 W) 43.8 131.4 175.2 219 262.8 175.2 LED (10 W) 21.9 65.7 87.6 109.5 131.4 87.6 Sign in to download hi-res image Fig. 2. Variation of energy consumption with number of lighting hours. View article Journal 2017, Renewable and...
and the mercury atom is ionized after absorbing energy and emits 253.7nm UV light, Because the temperature of the filament is about 1160K, which is much lower than that of the incandescent lamp at 2200k-2700k, the service life of the fluorescent lamp is greatly improved, and the energy-sa...
Why ordinary (incandescent) lamps waste energy How compact fluorescent lamps (CFLs) work What's inside a compact fluorescent lamp? Drawbacks of CFLs LED lamps How LED lamps work How can you compare the efficiency of different kinds of lamps? What about the color? How much do energy-saving la...
(note:conserving wateralso helps save energy). To avoid excessive energy consumption, also avoid buyingcryptocurrency/bitcoin or using unnecessary AI tools. Choosefuel-efficient vehicles(non-oversizedvehicles that ideally are electric or hybrid; or electric bicycles and scooters/motorcycles)—or better ...
which have since been altered to emit white light with a light-blue hue. LEDs produce twice as much light as a regular 60 watt bulb and burn for over 50,000 hours. The Department of Energy estimates LED lighting could reduce U.S. energy consumption for lighting by 29 percent by 2025. ...
Reduced energy consumption: One of the main benefits of energy-efficient lighting is that it uses less energy to produce the same amount of light as traditional incandescent or fluorescent lighting. For example, LED lighting can use up to 80% less energy than traditional incandescent lighting. ...
A quick and easy way to reduce your energy use is to replace existing incandescent bulbs with energy-efficient bulbs. According to the DOE, the switch to LED lighting can save about $225 in energy costs per year for the average household.5 ...
Instead of reaching for those when shopping for light bulbs, look for the government-backed symbol for energy efficiency, Energy Star; Energy Star-certified LED light bulbs use up to 90% less energy than an incandescent light bulb while providing the same amount of light. And these days, ...