GB 37478-2025Minimum allowable values of energy efficiency and energy efficiency grades of LED luminaires for road and tunnel lighting (English PDF)
道路和隧道照明用LED灯具能效限定值及能效等级
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Mandatory
Issue date
May 30, 2025
Implementation date
June 1, 2026
Scope
GB 37478-2025 is the English-translated version of 道路和隧道照明用LED灯具能效限定值及能效等级.
GB 37478-2025 is the Chinese national standard on minimum allowable values of energy efficiency and energy efficiency grades of led luminaires for road and tunnel lighting, in the field of energy and heat transfer engineering.
It carries no /T suffix, which in the Chinese system means compliance is mandatory: a product or a practice within its scope has to meet it to be lawfully made, sold or carried out in China.
It was issued on 30 May 2025 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 1 June 2026.
Classification: ICS 27.010, CCS F01. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there.
The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.
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Document preview — GB 37478-2025
National Standard of the People's Republic of China
- ICS
- 27.010
- Classification
- F01
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- Foreword3
- 1 Scope4
- 2 Normative References4
- 3 Terms and Definitions4
- 4 Technical Requirements5
- 5 Test Methods7
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This document serves as a replacement for GB 37478-2019 Minimum Allowable Values of
Energy Efficiency and Energy Efficiency Grades of LED Luminaries for Road and Tunnel
Lighting. In comparison with GB 37478-2019, apart from structural adjustments and editorial
modifications, the main technical changes are as follows.
a) The rated power supply voltage range for applicable products is modified (see Chapter
1; Chapter 1 of Version 2019);
b) The term and definition of “standby power” are added (see 3.4);
c) The provisions on the energy efficiency grades of LED luminaires for road and tunnel
lighting are modified (see 4.1.2 and 4.1.3; 4.1 and 4.2 of Version 2019);
d) The requirements for lumen maintenance are deleted (see 4.3 of Version 2019);
e) The requirements for the color temperature deviation of the rated correlated color
temperature cutoff points of LED luminaires for road and tunnel lighting are added (see 4.1.4);
f) The requirements for the standby power of LED luminaires for road and tunnel
lighting are added (see 4.4);
g) The test methods are modified; the test voltage and test requirements for dimming
products and color temperature adjustable products are added; the test method for the
1 Scope
This document specifies the energy efficiency grades, minimum allowable value of energy
efficiency and test methods for LED luminaires for road and tunnel lighting.
This document applies to LED luminaires for road and tunnel lighting with a rated power supply
voltage not exceeding 1,000 V (including LED light sources and their control gear but excluding
interconnected control components that can be independently installed or other accessories with
non-lighting related functions).
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 24826 General Lighting - Light Emitting Diode (LED) Products and Related Equipment - Terms and Definitions
GB/T 39018 Intelligent Lighting Equipment - Non-active Mode Power Measurement
GB/T 39394 Test Method for LED Lamps, LED Luminaires and LED Modules
3 Terms and Definitions
The terms and definitions defined in GB/T 24826 and the following are applicable to this document.
3.1 LED luminaire
A luminaire containing one or more LED light sources.
[source. GB/T 24826-2016, 3.17]
3.2 luminous efficacy of LED luminaire
Under the test conditions specified in the standard, the ratio of the initial luminous flux emitted
by an LED luminaire to the input power.
3.3 minimum allowable value of energy efficiency of LED luminaire
Under the test conditions specified in the standard, the minimum allowable value of the
luminous efficacy of an LED luminaire.
In standby mode, the average power consumption of an LED luminaire.
NOTE 1.standby mode is a mode of the control gear in which the control gear is connected to the
power supply voltage and the lighting function is turned off, but can be turned on by an
external trigger signal rather than a network trigger signal.
NOTE 2.an external trigger signal can be a sensor or timer.
Remaining clauses in the full document
- 4 Technical Requirements
- 4.1 Energy Efficiency Grades
- 5 Test Methods
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.
Referenced standards
Normative references
Similar standards
Editions of GB 37478
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB 37478-2025 | Minimum allowable values of energy efficiency and energy efficiency grades of LED luminaires for road and tunnel lighting | current edition | Current |
| GB 37478-2019 | Minimum allowable values of energy efficiency and energy efficiency gradesof LED luminaires for road and tunnel lighting | previous edition | Superseded |
This page sells the current edition, GB 37478-2025. Earlier editions are listed for reference only.
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Related Standards
GB/T 24826-2016 — General lighting -- Light emitting diode (LED) products and related equipment -- Terms and definitions
GB/T 39018-2020 — Intelligent lighting equipment—Non-active mode power measurement
GB/T 39018-2026 — Lighting equipment - Non-active mode power measurement
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