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Published on 3 Dec , 2010 at 17:31
Luminance
Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through, is emitted or reflected from a particular area, and falls within a given solid angle. Th...
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Published on 5 Nov , 2010 at 17:23
LED Lamps Specialty using
There are many different types of LED lamps, so different using;
White LED lamps have achieved market dominance in applications where high efficiency is important at low power levels. Some of these applications include flashlights, solar-powered g...
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Published on 8 Sep , 2010 at 17:13
LED Lamp Will Benefit Every family
At present, LED is popular in many different field lighting, how a leds lamp can benefit a family? is this a truth?
What we all know is that the LEDs lamp emits bright light and is energy saving. For most consumers. this is...
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Published on 5 Aug , 2010 at 01:09
LED Light Power Factor
In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit, and is a dimensionless number in the closed interval of −1 to 1. A po...
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Published on 16 Jun , 2010 at 17:05
Luminous flux
In photometry, luminous flux or luminous power is the measure of the perceived power of light. It differs from radiant flux, the measure of the total power of electromagnetic radiation (including infrared, ultraviolet, and visible light), in that luminous...
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Published on 8 Jun , 2010 at 16:46
Luminous efficacy
Luminous efficacy is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power, measured in lumens per watt in SI---Lm/W;
Not all wavelengths of light are equally visible, or equally effective at stimula...
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Published on 5 May , 2010 at 16:27
CRI---Color Rendering index
A color rendering index (CRI) is a quantitative measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with an ideal or natural light source. Light sources with a high CRI are desirable in colo...
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Published on 15 Apr , 2010 at 18:51
How to know the LED Light color temperature?
LED light color temperature(CCT) has too many kinds. we normally think it is warm white, Nature white, cool white.
but it is generalized understanding. Not very correct. As different data use to diffe...
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Published on 6 Mar , 2010 at 12:04
The LED Sustainable lighting
Efficient lighting is needed for sustainable architecture. In 2009, US Department of Energy testing results on LED lamps showed an average efficacy of 35 lm/W, below that of typical CFLs, and as low as 9 lm/W, worse than standard incandescent bulbs...
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Published on 15 Jan , 2010 at 11:58
The LED Advantages
Efficiency: LEDs emit more lumens per watt than incandescent light bulbs.
The efficiency of LED lighting fixtures is not affected by shape and size unlike fluorescent light bulbs or tubes.
Color: LEDs can emit light of an intended color ...
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