Shaoxing Xinshan Science Technology Co.,Ltd
Address: Dongfangyimai, No. 2, Pujiang Road, Shaoxing, China
In normal eyes, LED light source and LED lamps and lanterns appears to be the same, but in the eyes of professionals, these two concepts are different. From a professional point of view, the LED light source and LED lamps and lanterns has a very significant difference between the two, qi Chen xiao Ming will be aimed at the difference to many aspects of comparison, interested friends quickly take a look.
The definition of the LED light source and lamps and lanterns
LED light source is LED lamp or LED module provides components. LED lamps and lanterns is designed for the use of LED lighting lamps and lanterns.
Lamps and lanterns (luminaire) is defined as "to allocate, filters or transforms one or more of the lamp light of an apparatus, and including supporting, fixed, and protect the light all the necessary components (but not including the lamp itself), and the necessary circuit auxiliary device and connect them with the power of the device."
LED to the cause of the LED light source
Traditional light source of lamps and lanterns are almost can replace. With the emergence of leds, use the lamps and lanterns of LED module most take the form of non-replaceable, seems to present a trend of integration of, LED light source and the boundaries of LED lamps and lanterns also seems to be not clear.
The overall is a light emitting device, can be seen as a light source? Actually written in the "note" in the definition of lamps and lanterns: adopt and non-replaceable light illuminator is seen as a lamps and lanterns, use the lamps and lanterns of LED module is an example of lamps and lanterns.
The characteristics of the light source is used by different lamps and lanterns
The light source is used by the lamps and lanterns. Light source compared to the source water, lamps and lanterns compared to spring. LED light source can be either in the canister light use, and can be used in the road lamps and lanterns. Will "LED lights" or "LED tunnel light" interpreted as "light", cannot be again used the other lamps and lanterns, and "lamps and lanterns" using the concept of "light".
The protection grade differences
As the light source, no special requirements or should achieve IP20 protection grade. However, indoor lamps and lanterns should reach at least IP20 protection grade, LED road lamps and lanterns should reach at least IPX3 protection grade, tunnel lamps and lanterns should reach at least IPX5 protection grade.
LED light source is not the same as the LED lighting lamps and lanterns
In terms of light source, light efficiency is a classic indicators project, each kind of new light source directly related to its reach higher photosynthetic efficiency, so that smooth effect without exception also become an important index of the performance of the LED light source.
Light source, of course, the other performance index of the project also includes color rendering index, color coordinate, color moderate life and so on. To use the lamps and lanterns of traditional light source, lamps and lanterns, light output conversion light source of lamps and lanterns namely the ability of luminous flux, is a classic indicators of performance of lamps and lanterns.
Due to the LED light source has not yet reached the degree of standardization of performance parameters, and many kinds of lamps and lanterns of LED light source cannot be replaced, so also misused to the concept of the LED lighting lamps and lanterns.
The concept of LED lights and LED lighting lamps and lanterns is efficiency
LED light source lighting (luminous efficacy of a source) is defined as a source of luminous flux and the ratio of the electric power is consumed. Units for lm/W. It is not include loss of electrical accessories. LED lamps and lanterns of effectiveness (luminaire efficacy) definition refers to the lamps and lanterns of claims under the conditions of use, lamps and lanterns from the initial total luminous flux and the ratio of the power consumed, units for lm/W. Is the loss of the contain electrical accessories.
"Light" for evaluation of the LED light source, "efficiency" for evaluation of LED lamps, LED lights and LED lighting lamps and lanterns of effectiveness is used for the efficiency of electric energy into light energy, lighting product indicators project of energy saving features as described, but its connotation is different.
LED light luminous efficacy of light flux is refers to the bare lamp (state) has not been loaded into the lamps and lanterns of luminous flux. The integration of LED light source can be integrated LED lamp or LED module, integrated LED lamp or half integration LED module or not integrated LED lamp or LED module.
Expression type of molecules called luminous flux LED lamps and lanterns of effectiveness is refers to the light source into the lamps and lanterns, at the same time use the LED control device or LED control device of power supply after the luminous flux from lamps and lanterns. Which LED power supply control device or LED control device can be integrated, built in or freestanding. Using LED lighting lamps and lanterns can use reflector, diffuser or lens.
In the light of lamps and lanterns is likely to be a collection of individual light or more light, but due to the interaction of heat and electricity efficiency loss, and the efficiency of the optical system of lamps and lanterns, the luminous flux of LED lamps and lanterns is not equal to the LED lamp flux or the simple accumulation.
Luminous flux of LED light photosynthetic efficiency and effectiveness of lamps and lanterns of the luminous flux measurement condition is different, the former is measured in pulse state, the latter is measured in the steady state work condition. Leds luminous efficacy of light is no directivity, as long as the light out, all directions are recognized. And effectiveness alone has directivity of the LED lamps and lanterns, light need to useful areas. In the case of using the same LED light source, LED the luminous flux is smaller than the luminous flux of LED light source of lamps and lanterns.
Different input power
LED light source table type and the denominator in the LED lighting lamps and lanterns of effectiveness of the denominator meaning is not the same. For example, for the integration of LED modules, LED light source of electrical power consumption by only refers to the power consumed by a LED module, LED control unit consumption of power. The consumption of electric power of LED lamps and lanterns efficiency refers to the input power of lamps and lanterns, including not only the LED light source, include LED power consumed by a control device. LED lamps and lanterns of electrical power consumption is greater than the LED light source of electrical power consumption.
The relationship between efficiency of LED lamps and lanterns and LED light source light efficiency
Because luminous flux and the scope of the electrical power involved is different, cause the efficiency of LED light source is different from the LED lighting lamps and lanterns, light lamps and lanterns of photosynthetic efficiency than efficiency. One is LED into the lamps and lanterns, junction temperature rise, high light output decreases (heat loss); Secondly, light source into the lamps and lanterns, and USES the LED control device or the power supply after the loss of system; Third is the loss of the light through optical system of lamps and lanterns, lamps and lanterns namely efficiency loss (light).
Efficiency of lamps and lanterns = light photosynthetic efficiency x (1 - enter the lamps and lanterns of the luminous flux heat loss) x (1 - electrical accessory system loss) x (1 - enter the optical system of lamps and lanterns of light loss) (%)
Can be seen from the above analysis, the light source light efficiency and effectiveness of lamps and lanterns is completely different, cannot confuse STH with STH else.
As you can see, the LED lamps and the LED light source in the luminous flux, the input power, protection grade had a significant difference between the two. Thus the lamps and lanterns and light source on the concept of different is very obvious. Before the formal contact LED related knowledge, not equal to spend some time to read this article and find out the difference between the lamps and lanterns and light source.