Various lamps and lamps are using LEDs as light sources have appeared in large numbers, especially LED lamps that replace traditional light sources, for example, LED bulbs instead of ordinary incandescent lamps and self-ballasted fluorescent lamps. Simcretech (www.simcretech.com) has unique advantages in LED floodlight power supply, LED high bay light power supply, LED street light power supply, LED external waterproof power supply, solar LED drive power supply, multi-channel LED constant current power supply, etc. Provide LED fluorescent lamp power supply, LED spotlight power supply, power adapter, power module and other related products.

1. Self-ballasted LED lamp performance and domestic and international standards
With the rapid development of semiconductor lighting technology, various lamps and lamps using LEDs as light
sources have appeared in large numbers, especially LED lamps that replace traditional light sources, for example,
LED bulbs instead of ordinary incandescent lamps and self-ballasted fluorescent lamps. Instead of the LED-R lamp
and the LED-PAR lamp of the reflective incandescent lamp, instead of the LED-MR16 of the MR16 halogen lamp, they
can easily replace the light source without replacing the conventional lamp.
The self-ballasted LED lamp is an LED lamp with a lamp head that integrates the stable ignition parts. In fact,
the stable ignition parts of the LEDs are not part of the ballast parts, since the IEC 62560 "Self-ballasted LED-lamps
for general lighting services > 50V – Safety specifications" draft uses the same "Self-ballasted" as the self-ballasted
fluorescent lamps, "Campus" describes the driving of LEDs, so China's national standards are also literally translated
as "self-ballasted LED lights." The US ENERGY STAR standard is called “Integral LED Lamp”, which is an integral LED
lamp.
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a. Main performance indicators of self-ballasted LED lights (integrated LED lights)
1. Lamp power
The lamp power referred to here is the total input power of the whole lamp, which is not only the power
consumed by the LED lighting device. Some enterprises mistake the power of the LED device as the power of the
lamp. For example, three 1W LED light sources are used, and the rated power is set to 3W. Such an error will cause
the measured power to exceed the standard requirements. In fact, the lamp power should also include the power
consumed by the drive control circuit.

2. Power factor
The power factor is the ratio of active power to apparent power. The low power factor means that the reactive
power is large, which will increase the line power consumption.
3. Luminous flux
Luminous flux refers to the radiant energy that the human eye can feel. It is the most important indicator of the
illumination source.
4. Light effect
Light efficiency (luminous efficiency) is the luminous flux that can be emitted by unit power, calculated by
dividing the luminous flux by the actual power consumption. It embodies the efficiency of the lamp to convert
electrical energy into light energy, and the higher the lighting efficiency, the more energy efficient.
5. Color characteristics
The color characteristics are determined by the color table and color rendering. The color of the light actually
emitted by the lamp is called the color table and is determined by the chromaticity coordinates of the CIE1931 (x,y)
chromaticity diagram; the effect of the spectral characteristics of the light emitted by the lamp on the surface of the
object is called color rendering. In practical applications, color rendering is represented by the general color
rendering index Ra.
6. Luminous maintenance rate
The luminous flux maintenance rate refers to the ratio of the luminous flux of a lamp at a specific time during
the lifetime to the initial luminous flux of the lamp, expressed as a percentage.
7. Switch test

3. The switch test is a test that repeatedly turns the lamp on and off to assess the ability of the lamp to withstand
the impact of the switch. LED lights have clear advantages over traditional light sources in terms of switching
performance.
8. Life expectancy
Life is divided into single lamp life and average life. The life of a single lamp refers to the cumulative time from
the ignition point to the failure of a lamp or to the time when its luminous flux maintenance rate is lower than the
specified value. The average life is the cumulative time when the lamp's luminous flux maintenance rate meets the
specified requirements and the lamp that continues to ignite to 50% reaches the life of a single lamp. Although the
lamp can work but the lumen maintenance rate is very low, it can be considered that the lamp has lost its effective
illumination function. Therefore, when the lumen maintenance rate is lower than a certain value, it is judged to be
invalid. Some of the specified values are 70%, and some are also available. It is 50%. It should be noted that the life
expectancy stated in the product specification refers to the average life, not the life of each lamp.
b. Differences between domestic and international standards for self-ballasted LED lights (integrated LED
lights)
China National Standard GB / T 24908 - 2010 "Performance Requirements for Self-ballasted LED Lamps for
General Lighting", American ENERGY STAR Program Requirements for Integral LED Lamps ENERGY STAR Eligibility
Criteria (released in December 2009) And the International Electrotechnical Commission's IEC /PAS 62612 "Self-
Ballasted LED Lampsfor Genera Lighting Services Performance Requirements" standard (draft) (hereinafter referred
to as: GB / T24908, Energy Star Standard, IEC draft) are all about self-ballasted LED lights The standards for
performance requirements, but the specific requirements of the three standards are different. These differences are
detailed in this paper so that they can be properly understood and used.
Lamp power

4. 5.3 of GB / T 24908 requires: "When the lamp is operated at rated voltage and rated frequency, the difference
between the actual consumed power and the rated power shall not exceed 15% or 0.5W."
Considering a lamp with a relatively low rated power, the 15% of its rated power is relatively small and difficult
to control, allowing the power deviation to be relaxed to 0.5W. For example, a lamp with a rated power of 2W, 15%
of the rated power is 0.3W, less than 0.5. W, the maximum power deviation is allowed to be 0.5W; if 15% of the
rated power is greater than 0.5W, then 15% is taken.
"The difference between the actual consumed power and the rated power should not exceed 15% or 0.5W",
that is, the actual power consumption is greater than the rated power or less than the rated power, and the positive
and negative deviations of the power should meet the requirements.
Clause 7 of the IEC draft requires that “the power loss of the LED lamp must not exceed 15% of the rated
power”, but only limits the range of actual power consumption above the rated power, that is, the upper limit is
specified, and there is no limit to the negative power deviation. .
Although the lamp power is not required in the ENERGY STAR standard, the standard mentions that it should
also comply with UL1993-1999, and UL1993 specifies the positive power deviation: no more than 10% + 0.5W of
rated power.
Power factor
Clause 5.4 of GB / T 24908 requires that "when the lamp is operated at rated voltage and rated frequency, its
actual power factor shall not be lower than the manufacturer's nominal value of 0.05." The specific value of the
power factor is not specified in the standard. The manufacturer is required to be self-nominating, but the lower limit
of the actual power factor is less than the nominal value. For example, if the nominal power factor is 0.95, the
measured value is not less than 0.90.

5. The energy factor of the energy star is less than or equal to 5W. The average power factor of the lamp power
greater than 5W is greater than or equal to 0.7. Since increasing the power factor has an impact on cost and
efficiency, and the low-power lamp has less impact on the grid, this is relatively reasonable.
The IEC draft does not address power factor requirements.