SAE J2009_200510

This SAE Recommended Practice applies to motor vehicle forward illumination systems and subsystems generated by discharge sources. It provides test methods, requirements, and guidelines applicable to the special characteristics of gaseous discharge lighting devices which supplement those required for forward illumination systems using incandescent light sources. The document is applicable to both discharge forward lighting systems, subsystems and components. This document is intended to be a guide to standard practice and is subject to change to reflect additional experience and technical advances. The J2009 document has been revised to reflect industry changes in the last five to seven years. In an attempt to support further worldwide harmonization, several tests and requirements have been aligned with ECE regulations, especially ECE R98 and R99 and IEC regulations, especially IEC 60810. Many manufacturers have produced DFL systems and the field experience gathered has allowed the further advancement of specifications in the area of photometry, maintenance and color. These advancements are captured in this revised document. Several references have been added where additional information has been derived and as the systems continue to develop, more data will be accumulated and the specifications refined. The document remains a recommended practice for the use of low and high beam forward lighting systems. The addition of other forward lighting devices such as daytime running light (DRL), cornering lamp and fog lamp will be considered in future revisions of the document as these devices become more widely used in the industry. The specifications outlined in SAE J2009, written with the automotive industry input, will continue to serve in conjunction with federal regulations in the hope that they will become the standard referenced in future federal regulation changes. These are changes to the following sections and guidelines: