GB/T 33720-2017Accelerated test method of luminous flux depreciation for LED lighting products (English PDF)

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009.

Introduction

LED lighting products, the traditional reliability test method for a long time, high cost, seriously affected the speed of new product marketing. for Luminous flux attenuation estimated life of 25000h LED lighting products, usually need to product or its optical module at least 6000h test Test. The purpose of this standard is to develop a measurement of LED lighting products luminous flux attenuation of the accelerated test method, does not affect the reliability of the evaluation of fine Under the premise of the 6000h test time will be shortened to 2000h.

1 Scope

This standard specifies an accelerated test method for luminous flux attenuation of LED lighting products.

This standard applies to the use of blue chip excitation phosphor structure of the white LED as a light source of LED lighting products, including LED ball Bulb, LED Spotlight, LED Straight Light, LED Downlight, LED Street Light and LED Tunnel Light. Other LED lighting products can refer to the implementation.

2 Normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 2424.5 Electrical and electronic products - Environmental test - Temperature chamber - Performance verification

GB 7000.1 lamps - Part 1: General requirements and tests

GB/T 24824-2009 Test methods for LED modules for general lighting applications

GB/T 24826 LED and LED modules for general lighting - Terms and definitions

GB/T 29294-2012 Performance requirements for LED downlights

JJG 245 illuminance meter verification procedure

ANSI_ANSLG C78.377-2011 US National Standard Light Solid Illumination Color Specification (American National Standard for Electric Lamps - Specifications for the Chromaticity of Solid State Lighting Products)

3 Terms and definitions

GB 70.1, GB/T 24824-2009, GB/T 24826, GB/T 29294-2012 and the following terms and definitions Apply to this document. For ease of use, some of the terms and definitions in GB/T 29294-2012 are listed below.