Why LM-79 and LM-80 Testing is Important for LED indoor light

LM-79 and LM-80 are energy efficiency standards approved by IESNA for LED product testing.
LM-79 test refers to the photoelectric measurement of solid-state lighting products, mainly testing the luminous flux, light intensity, color degree, etc. LM-80 luminous flux maintenance rate (LED) life standard mainly tests the maintenance rate of luminous flux output, that is, the life test of LED light source.

LM-79 is mainly tested for photoelectric performance. Since some test items need to be completed with the help of goniophotometer, ordinary manufacturers are not able to make a complete report. This test is generally aimed at manufacturers of the whole lamp The main test items are as follows:
1 Total luminous flux;
2. luminous efficiency;
3. light intensity distribution;
4. relevant color temperature (CCT);
5. color rendering index (CRI);
6. chromaticity coordinates (or chromaticity coordinates);
7. input AC (or DC) voltage;
8. input AC (or DC) current;
9. input power (DC or AC);
10.input voltage frequency;
11.power factor.

LM-80 mainly measures the lumen maintenance of LED light source. This test is aimed at the light source manufacturer, so the manufacturer of lamps only needs to ask your light source manufacturer for this test report Lm-80 is a test method for luminous flux maintenance rate of LED light source. It is aimed at LED light source instead of LED bulb and lamp, including test contents:
1 Luminous flux maintenance rate of light source at different temperatures;
2 Chromaticity retention of light source at different temperatures.

LM-80 mainly tests the maintenance rate of luminous flux output, that is, the life test of LED light source:
1 Displays the index.
2. initial value
3 Luminous flux
4 Luminous flux maintenance rate
5 Light attenuation,
6 There are 3 temperature points to be measured, 55 ° C and 85 ° C. the customer also needs to specify a temperature point (such as 105 ° C) 25 samples for each, 75 samples in total; It can only be two temperatures, but most of them are three.
Note: Luminous flux refers to the light energy radiated from the surface of the light source that can be perceived by human vision, and its calculation unit is lumen (LM).

Relationship between LM-79 and LM-80 and Energy Star:
lM-79 energy star has a large number of requirements for optical parameters, and its test methods all refer to LM-79 as the test method standard The test data of LM-80 is used as the reference data of luminous flux of the finished light source to calculate the luminous flux maintenance rate and chromaticity maintenance rate of the finished lamp. It is not that the luminous flux maintenance rate is not required with lm-80 data, but also needs to be tested and verified.

Because of LM-79 and LM-80 tests are important for LED indoor lights, LISUN lauched LSG-6000 Moving Detector Goniophotometer (Mirror Type C) was manufactured by LISUN completely meets LM-79-19, IES LM-80-08, COMMISSION DELEGATED REGULATION (EU) 2019/2015, CIE-121, CIE S025, SASO 2902, IS16106 and EN13032-1 clause 6.1.1.3 type 4 requirements. LSG-6000 is the latest upgraded product of LSG-5000 and LSG-3000 in compliance with the requirements of the LM-79-19 standard Clause 7.3.1, its an automatic light distribution intensity 3D curve testing system for measuring light. The measuring distance is from 5m to 30m.

LM-79 Moving Detector Goniophotometer (Mirror Type C)

LSG-1890BCCD/LSG-1800ACCD goniospectroradiometer is high precision automatic goniophotometric instrument for luminous intensity distribution measurement with facility for rotating the light source. The LSG-1890BCCD/LSG-1800ACCD can do the spatial CCT test and the intensity distribution test. It is for industrial laboratory photometric data measurement of luminaires such as LED luminaires, LED Plant Lighting, HID luminaires, fluorescent lamps and so on. Full meet the EN13032-1 clause 6.1.1.3 goniophotometer type 1, COMMISSION DELEGATED REGULATION (EU) 2019/2015, CIE-70, CIE-121, IES LM-79, IES LM-75, IES LM-80 and ect.

High Precision Rotation Luminaire Goniophotometer LSG 1890BCCD

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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