What is a power LED?

Answer A light-emitting diode, or LED, is a device that emits light when exposed to a voltage. Manufacturers often use LEDs as "indicators" to show the status of a part of an electronic device. A "power L... Read More »

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What is the reason that makes OLED TV need only little power to operate I heard that OLED TV uses less power than the other LCD TVs when compared What makes them so power efficient?

OLED TV works on pixel emission concept and not on the backlight concept. So it takes less amount of power as compare LCD TV.

Can a 1000-watt PC power& cooling power supply unit power three 8800 GTX units?

A 1000-watt power supply will drive three NVidia GeForce 8800GTX video cards with room to spare, since they consume approximately 247 watts of power each. You may want to consider separately power... Read More »

What size solar power system is needed to power a four-ton air conditioner?

Depending on system efficiency, a 4-ton air conditioning unit requires approximately 6,000 watts of electricity. Home solar panels come in various sizes, and the number of panels needed depends on ... Read More »

What percentage of the power delivered by a generator is dissipated as heat in a power line?

Approximately 66 percent of the power delivered by a generator is dissipated as waste heat. In 2000, for example, 40 quads (a quad is equal to 10 to the power of 15) BTUs, or British Thermal Unit ... Read More »