energy of light

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• Incandescent light bulbs, including regular or energy-efficient light bulbs —   An incandescent bulb is a type of electric light in which light is produced by a filament heated by electric current. The most common example is the type you find in most table and floor lamps. In commercial buildings, incandescent lights are… …   Energy terms

• High-energy visible light — In ophthalmology, high energy visible light (HEV light) is high frequency light in the violet/blue band from 380 to 530 nm in the visible spectrum.Dykas, Carol. [http://www.2020mag.com/CE/TabViewTest/tabid/92/LessonId/3127/Default.aspx How to… …   Wikipedia

• Light-dependent reactions — of photosynthesis at the thylakoid membrane See also: Light independent reactions The light dependent reactions , or light reactions, are the first stage of photosynthesis, the process by which plants capture and store energy from sunlight. In… …   Wikipedia

• Energy quality — the contrast between different forms of energy, the different trophic levels in ecological systems and the propensity of energy to convert from one form to another. The concept refers to our empirical experience of the characteristics, or qualia …   Wikipedia

• Light trucks —   All single unit two axle, four tire trucks, including pickup trucks, sports utility vehicles, vans, motor homes, etc. This is the Department of Transportation definition. The Energy Information Administration defined light truck as all trucks… …   Energy terms

• Energy Efficiency —   Programs that reduce consumption.   ***   A ratio of service provided to energy input (e.g., lumens to watts in the case of light bulbs). Services provided can include buildings sector end uses such as lighting, refrigeration, and heating:… …   Energy terms

• Light-duty vehicles —   Vehicles weighing less than 8,500 lbs (include automobiles, motorcycles, and light trucks).   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

• Light bulbs —   A term generally used to describe a man made source of light. The term is often used when referring to a bulb or tube .   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

• Light-emitting diode — (LED)   A semiconductor diode that emits light when a voltage is applied to it and that is used in a variety of applications including commercial, residential and traffic signal lighting.   California Energy Comission. Dictionary of Energy Terms …   Energy terms

• Light water reactor — (LWR)   A nuclear reactor that uses water as the primary coolant and moderator, with slightly enriched uranium as fuel.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary   ***   A nuclear power unit that uses ordinary… …   Energy terms

• Light gas oils —   Liquid petroleum distillates heavier than naphtha, with an approximate boiling range from 401 degrees to 650 degrees Fahrenheit.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms