oSIST prEN IEC 63640:2026

Vrtnarska razsvetljava - LED-moduli za vrtnarsko razsvetljavo - Varnost

General Information

• Status: Not Published
• Public Enquiry End Date: 08-Jul-2026
• ICS: 29.140.01 - Lamps in general
• ICS: 29.140.99 - Other standards related to lamps
• ICS: 65.060.70 - Horticultural equipment
• Technical Committee: STV - Steklo, svetloba in razsvetljava v gradbeništvu
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 30-Apr-2026
• Due Date: 17-Sep-2026
• Ref Project: prEN IEC 63640:2026 - Horticultural lighting - LED modules for horticultural lighting - Safety

Overview

oSIST prEN IEC 63640:2026 establishes essential safety requirements for LED modules designed for horticultural lighting applications. Published by SIST, this international standard aligns with the prEN IEC 63640:2026 draft, providing a safety framework for LED modules when operated on DC supplies up to 1,500 V or AC supplies up to 1,000 V. This standard does not address performance specifications; its primary focus is on ensuring electrical, thermal, mechanical, and photobiological safety in environments such as greenhouses, vertical farms, and controlled-environment agriculture.

The document is relevant for manufacturers, designers, and integrators developing LED lighting solutions specifically for horticulture. By defining classification and safety requirements, oSIST prEN IEC 63640:2026 contributes to safe installation and use of horticultural lighting systems globally.

Key Topics

This standard covers several major safety aspects for horticultural LED modules:

• Classification: Defines categories of LED modules based on their intended use, such as unrestricted use and industrial/professional use. Modules for industrial/professional use typically require supervised installation and are not generally user-replaceable.
• General Safety Requirements: References the foundational requirements of IEC 62031 for LED modules, extending them for horticultural lighting.
• Marking and Documentation: Specifies labeling and technical information obligations, including warnings about photobiological hazards where necessary.
• Electrical Safety: Requires compliance with electrical safety provisions to prevent risks such as electrical shock.
• Thermal & Mechanical Safety: Sets out conditions to mitigate heat and mechanical risks associated with LED modules operating in horticultural settings.
• Photobiological Safety: Details the assessment and classification of potential photobiological hazards according to risk levels established by IEC 62471, with additional controls for modules used in professional environments.
• Abnormal and Fault Conditions: Considers module behavior and safety under fault or abnormal operation scenarios.

Applications

oSIST prEN IEC 63640:2026 is critical wherever LED modules for horticultural lighting are used. Key practical applications include:

• Greenhouses & Indoor Farms: Ensures that lighting fixtures for growing vegetables, flowers, and medicinal plants comply with robust safety principles.
• Vertical Farming and Plant Factories: Facilitates the deployment of safe, high-intensity LED lighting in stacked arrangements and closed environments.
• Research Facilities: Supports safe experimentation and prototyping of plant growth with advanced lighting technologies.
• Commercial Horticulture: Enables reliable and safe integration of LED modules into large-scale agricultural operations.

By implementing this standard, organizations improve user safety, reduce liability, and support international interoperability of horticultural lighting products.

Related Standards

oSIST prEN IEC 63640:2026 references and complements the following international standards:

• IEC 62471:Photobiological safety of lamps and lamp systems - Defines how to evaluate and classify photobiological hazards in light sources.
• IEC 62031:LED modules – Safety requirements - The parent standard for the safety of LED modules, covering general requirements applicable to all LED modules.
• IEC 63545:Horticultural lighting – Luminaires for horticultural lighting - Safety - Addresses broader luminaire safety considerations for horticultural lighting products.

Adherence to these related standards ensures a comprehensive approach to the safety and regulatory compliance of horticultural LED modules, supporting safe innovation and growth in modern agriculture.

Keywords: horticultural lighting, LED modules, safety standard, prEN IEC 63640:2026, electrical safety, photobiological safety, horticulture LED, greenhouse lighting, vertical farming lighting, SIST, IEC standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2026
Vrtnarska razsvetljava - LED-moduli za vrtnarsko razsvetljavo - Varnost
Horticultural lighting - LED modules for horticultural lighting - Safety
Ta slovenski standard je istoveten z: prEN IEC 63640:2026
ICS:
29.140.99 Drugi standardi v zvezi z Other standards related to
žarnicami lamps
65.060.70 Vrtnarska oprema Horticultural equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

34/1440/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63640 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-04-17 2026-07-10
SUPERSEDES DOCUMENTS:
34/1306/RVN, 34/1404/CD
IEC TC 34 : LIGHTING
SECRETARIAT: SECRETARY:
United Kingdom Mr Petar Luzajic
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
SC 34A
ASPECTS CONCERNED:
Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the
final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Horticultural lighting - LED modules for horticultural lighting - Safety

PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, o r any part of it,
for any other purpose without permission in writing from IEC.

IEC CDV 63640 © IEC 2026
1 CONTENTS
2 FOREWORD . 2
3 1 Scope . 4
4 2 Normative references . 4
5 3 Terms and definitions . 4
6 4 Classification . 4
7 4.1 General . 4
8 4.2 Classification according to the intended use . 4
9 5 General requirements . 5
10 6 General conditions for tests . 5
11 7 Marking . 5
12 8 Electrical safety . 5
13 9 Thermal safety . 5
14 10 Mechanical safety . 5
15 11 Photobiological safety . 5
16 11.1 General . 5
17 11.2 LED module for Industrial or professional use . 5
18 12 Fault conditions . 5
19 13 Abnormal conditions . 6
IEC CDV 63640 © IEC 2026
21 INTERNATIONAL ELECTROTECHNICAL COMMISSION
22 ____________
23 Horticultural lighting – LED modules for horticultural lighting - Safety
26 FOREWORD
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