LED lighting products performance of the general evaluation

LED lighting products performance of the general evaluation

1. The classification of LED lighting products

At present, the LED lighting products mainly divided into LED lighting lamps and lanterns (for example: LED lamps and lanterns, LED light road for lamps and lanterns, embedded LED lamps and lanterns, LED tunnel lamps and lanterns, LED adornment lamps and lanterns, LED lamp) and traditional lighting source substitute LED lamp (for example: since ZhenLiu LED lamp, MR16, PAR lamp, fluorescent T8 / LED straight form T12, etc.). LED lighting lamps and lanterns is including based on LED components and matching drive, match light components, fixed and protection of the light emitting components components and instruments to the branch circuit components connect full lighting apparatus. LED lighting and can be divided into the integral LED lights and integral LED lamp two kinds.

The integral LED lamp contains LED array (module) or LED packaging (element, and standard lamp holder and other luminosity, thermal, mechanical and electrical components assemblies. This LED lamp should be installed in a standard lamp holder and LED the lamps and lanterns of use in the drive. This LED lamp can not directly and branch circuit connection.

Integral LED lamp contains LED array (module) or LED packaging (components), LED drive, the standard lamp holder and other luminosity, thermal, mechanical and electrical components of the overall combination. This LED lamp can be directly mounted in the standardization of the lamp holder, it can use directly with branch circuit connection. LED lights LED lighting lamps and lanterns with the biggest difference is the LED lamp should be installed in standard lamp holder inside and use.

2. LED lighting lamps and lanterns and light lamps and lanterns difference. Traditional

At present, the LED lighting lamps and lanterns and traditional light lamps and lanterns there are different in many aspects. First of all, the traditional source of lamps and lanterns life can replace the damaged by light source, the lamp of the control device to meet requirements, so usually don't light the lamps and lanterns of traditional evaluation service life. LED lighting lamps and lanterns is LED light source and lamps and lanterns, now a shell LED lighting lamps and lanterns of life and LED light source itself life, LED drives and lamps and lanterns to provide the environment, and many other factors LED about. To different LED lamps and lanterns, its life expectancy is only through the relevant life characteristics to determine the evaluation.

Second, and traditional light lamps and lanterns LED lighting lamps and lanterns is different, use DuoGe LED light source or module composition and glowing lights, LED lights of lamps and lanterns between color difference, need to use color space evenness evaluation to evaluate LED lamps and lanterns of spatial distribution of the color, LED lamps and lanterns of existing evaluation different color difference observation Angle.

Again, the traditional lighting source may be alone for spectrophotometric test, the luminosity measurement can use relative method. Because LED lamps and lanterns integration and LED light source for temperature characteristics of extremely sensitive, not suitable for will LED light source separated from within the lamps and lanterns separately measured, the luminosity should in the measurement method for the absolute LED lamps and lanterns whole photometric test.

Fourth, the traditional lighting lamps and lanterns with lamps and lanterns to evaluate the efficiency, and LED lamps and lanterns USES or efficacy to evaluate energy efficiency.

3. LED lighting products performance of the general evaluation

Lighting products performance index of evaluation content mainly includes: general light characteristics; The electrical characteristics, color characteristics, thermal characteristic, life characteristics, reliability, etc. At present LED lighting products performance evaluation indicator system of contains the following aspects:

(1) light characteristics include: light intensity distribution, initial output energy efficiency (efficacy) / flux, light intensity/intensity of illumination;

(2) the electrical characteristics include: light power, power factor;

(3) color characteristic mainly includes: related color temperature, the colour developing index, color product coordinates, color product tolerance, main wavelength (monochrome), color distribution uniformity and color space evenness;

(4) thermal characteristic mainly include thermal resistance and junction temperature;

(5) life characteristics include switch frequency test, life/accelerated life tests, lumens maintenance ratio (flux maintenance ratio) / light intensity maintenance ratio (reflective cup type MR16 or PAR light);

(6) the reliability test.

Related reading:
Previous:LED lighting products performance of the general evaluation
next article:Heat substrate summary introduction LED and the technical development trend analysis
Directory page:LED Information
Return top