Industry News

LED downlight national standard analysis

Update:28-08-2017

    The national standard has issued a "LED downlight performance requirements" and "LED downlight performance test method" and several other project standards, marking the LED downlight national standard to determine the purpose of knowing LED downlight design package and use, authority The emergence of LED lighting industry to provide a continuous support services.
   1  Scope of application
   This technical requirement is mainly for LED downlight lighting products, the provisions of the LED downlight technical requirements, including product specifications classification, the initial luminous flux, the initial light efficiency and luminous flux maintenance rate and other basic optical performance indicators, electrical safety requirements and radio disturbance characteristics .
The technical requirements apply to the rated voltage 220V, frequency 50Hz AC power LED downlight.
   2   normative reference file normative reference file normative reference file normative reference file
  The terms of the following documents are incorporated by reference in their entirety to the terms of this technical requirement.
   ANSI C78.377-2008 Specification for the Chromaticity of Solid-State Lighting Products
   GB17743-2007 Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
   GB 17625.1-2003 Electromagnetic compatibility limits Harmonic current emission limits (input current per phase ≤ 16A)
   3 definition
3.1 Rating: The value of the LED downlight under specified operating conditions, specified by the product manufacturer or the responsible seller.
3.2 Rated luminous flux: The nominal value of the initial luminous flux, which is specified by the product manufacturer or the responsible seller.
3.3 Rated correlated color temperature: The rated color temperature, which is specified by the product manufacturer or the responsible seller.
3.4 initial value: experienced 1000 hours of LED downlight stable operation of the photoelectric parameter value, the initial value used to evaluate the initial performance of LED downlight.
3.5 Initial Luminous Flux: The initial value of the total luminous flux emitted by the LED Downlight, in lumens (lm).
3.6 Initial Light Effect: The initial value of the luminous efficiency of the LED downlight, in lumens per meter (lm / W).
3.7 Initial correlated color temperature: The initial value of the relevant color temperature of the LED downlight, in Kelvin (K).
3.8 Initial color: the initial value of the color rendering index of the LED downlight.
3.9 luminous flux maintenance rate: LED downlight in the rated conditions continue to be experienced 3000 hours after the total luminous flux issued by the initial luminous flux ratio, expressed as a percentage.
   4 specifications
   According to the size of LED downlight, LED downlight can be divided into two sizes, 2.5 inch, 3 inch, 3.5 inch, 4 inch, 5 inch, 6 inch, 8 inch and 10 inch several specifications.
   5 technical requirements
5.1 Optoelectronic performance requirements
5.1.1 Initial luminous flux requirements
4 inch LED lamp down the initial luminous flux should not be less than 550lm;
4-inch (including 4-inch) LED downlight the initial luminous flux should not be less than 340lm;
LED downlight initial luminous flux should not be less than 90% of the rated luminous flux, not higher than the rated luminous flux of 120%.
5.1.2 initial light efficiency requirements LED downlight initial light effect of not less than 55lm / W.
5.1.3 luminous flux maintenance requirements LED downlight 3000 hours of luminous flux maintenance rate should not be less than 96%.
5.1.4 chromaticity requirements LED downlight color should meet the requirements of Table 1. Table 1
Chromaticity requirements rated relative color temperature initial correlated color temperature Duv and its tolerance
2700K 2725 ± 145 0.000 ± 0.006
3000K 3045 ± 175 0.000 ± 0.006
3500K 3465 ± 245 0.000 ± 0.006
4000K 3985 ± 275 0.001 ± 0.006
4500K 4503 ± 243 0.001 ± 0.006
5000K 5028 ± 283 0.002 ± 0.006
5700K 5665 ± 355 0.002 ± 0.006
6500K 6530 ± 510 0.003 ± 0.006
5.1.5 Initial color development LED downlight initial color rendering index should not be less than 85.
5.1.6 Light distribution requirements Within 60 ° of the angle to the vertical axis, the luminous flux should account for more than 75% of the total luminous flux.
5.1.7 Power factor LED Downlight power factor should not be less than 0.90.
5.2 Safety requirements LED downlight should comply with national safety standards.
5.3 requirements of electromagnetic compatibility performance LED downlight radio disturbance characteristics should meet the requirements of GB17743-2007; LED downlight input harmonic current should be consistent with GB17625.1-2003 requirements.
   6 logo
   LED downlight should be clear and durable marked:
A) the labeling items required by the relevant national safety standards;
B) power factor;
C) rated luminous flux;
D) rated correlated color temperature;
E) color rendering index.

   http://www.fujinglight.com/