In this paper, we describe LightWave, a sensing approach that turns ordinary compact fluorescent light (CFL) bulbs into sensors of human proximity. Unmodified CFL bulbs are shown to be sensitive proximity transducers when they are illuminated. This approach utilizes predictable variations in electromagne...
Compact fluorescent light bulb(CFL),energy saver Price 50 cents 5 Cost of energy Used in one year (4 hours a day):9.3 Used in one year(4 hours a day):2.5 Energy used 75 watts(Most of this energy is wasted as heat.) 20 watts Lifetime 1.000 hours 10,000 hours () 1.How much mor...
U.S. Assistant Secretary for Electricity Delivery and Energy Reliability Kevin Kolevar officiated at the event at an elementary school, encouraging citizens to change at least one incandescent light in their home to a compact fluorescent bulb. He said CFLs use 75 percent less energy than do stan...
And use fluorescent bulbs(荧光灯), which provide bright, warm light while using at least two-thirds less energy, producing 70 percent Jess beat and lasting up to 10 times longer than incandescent bulbs(白炽灯). Drive the car that gets better gas mileage whenever possible if you own more ...
High output and compact fluorescent lights emit more light, less heat, and a strong light spectrum than standard fluorescents and are significantly more efficient than incandescent lamps. Along withLED grow lights, they are now one of the favorite choices among home gardeners!
5. No Waiting for Light Some bulbs take a while to reach their full brightness once you flip on the switch. Fluorescent bulbs are notorious for sometimes taking several minutes to get to maximum brightness. That’s not the case with LED bulbs. They turn on instantly and are immediately at...
An energy-saving light bulb(灯泡) uses less energy to produce the same amount of light as a regular bulb. Use the chart to compare a regular bulb with an energy-saving bulb.Energy-saving Regular Light Bulb Light Bulb Compact fluorescent Incandescent Name light bulb light bulb ( CFL ),...
(斑点)asyoursightadjuststoadarkplaceafterbeinginalightplaceiscalleddarkadaptation.Itnormallytakesoureyesabout20to30secondstoseebestinadarkroom.Thebrighterthelights,thelongerittakesforoureyestoadjust,whichiswhydimmingtheplanelightscouldshortenyour“darkadaptation”timesinceyouhaven'tbeensittingunderfluorescentbulbs(...
12. Good Quality of Light Consistent, Stable, and Sufficient lighting… That’s what you get with LED lights. Incandescent bulbsnot only heat up but can also burn out any moment. While fluorescents are bound to give you a migraine due to their incessant flickering. ...
Compact fluorescent light bulb(CFL),energy saver Price 50 cents $5 Cost of energy Used in one year (4 hours a day):$9.3 Used in one year(4 hours a day):$2.5 Energy used 75 watts(Most of this energy is wasted as heat.) 20 watts ...