IEC 62031:2018

Overview

IEC 62031:2018 - "LED modules for general lighting - Safety specifications" is the second edition (2018) International Electrotechnical Commission standard that defines general and safety requirements for LED modules used in general lighting. It covers:

• Non-integrated LED modules (LEDni) and semi-integrated LED modules (LEDsi) intended for operation under constant voltage, constant current, or constant power.
• Integrated/self-ballasted LED modules (LEDi) for use on DC supplies up to 250 V or AC supplies up to 1 000 V at 50 Hz or 60 Hz.

This edition cancels and replaces IEC 62031:2008 (and its amendments) and introduces several technical revisions to clarify scope, update normative references and tests, and strengthen safety-related provisions.

Key Topics and Requirements

IEC 62031:2018 addresses the full range of safety aspects for LED modules, including:

• Marking and identification - restructured marking clauses, new tables for overview, and revised marking rules for built‑in modules and working voltage.
• Definitions - clarified terms such as replaceable, non-replaceable, and non-user replaceable LED module.
• Construction and terminals - provisions for integral and non-integral terminals, earthing, and protection against accidental contact with live parts.
• Electrical safety - moisture resistance, insulation, electric strength, fault-condition testing (including overpower conditions), and conformity testing during manufacture.
• Heat management - revised requirements for thermal interface materials, heat protection and guidance for luminaire designers on mounting and thermal testing.
• Photobiological safety - UV, blue light hazard, and infrared radiation considerations and guidance for assessment.
• Design guidance - information for luminaire design (working voltage, water contact) and a newly introduced abnormal temperature test (Annex D).

The standard also lists normative references and removes some definitions covered by IEC 62504 to avoid duplication.

Applications and Who Uses It

IEC 62031:2018 is essential for professionals involved in the design, manufacture, testing and certification of LED modules and luminaires, including:

• LED module and luminaire manufacturers (product development and compliance)
• Control-gear and driver suppliers (interface and thermal considerations)
• Test laboratories and conformity assessment bodies (type and routine testing)
• Regulatory authorities and procurement teams (safety specifications and acceptance)
• Lighting designers and OEMs (luminaire integration, mounting and thermal design)

The standard helps ensure product safety, interoperability with control gear, and reliable performance in end-use luminaires.

Related Standards

• IEC 61347-2-13 (control gear safety for LED modules)
• IEC 62384 (performance of control gear) / IEC 62717 (LED performance)
• IEC 62504 (LED terms and definitions referenced)
• IEC 60968 (requirements for self-ballasted lamps - related scope under development)

Using IEC 62031:2018 supports compliant product development and reduces risk in LED lighting systems by addressing electrical safety, thermal management, marking, and photobiological concerns.