The formulation of lighting energy-saving standards is a very important work. China's lighting energy-saving standard has been widely concerned and supported by all walks of life and the international community since the implementation of China Green Lighting Project in 1996. Through these years' work, we have achieved remarkable results and accumulated rich experience, so as to establish a high-quality, efficient, economical, comfortable, safe and reliable lighting environment for improving lighting quality, saving lighting electricity and protecting the environment.

The main domestic standards are as follows:

1. Shanghai local standard "Standard for Rational Electricity Use of Lighting Equipment" (DB 31/178-1996).

2. Beijing standard Technical Specification for Green Lighting Engineering (DBJ 11-617-2111).

3. national standard "design standard for building lighting" (GB51134—2114).

4. Other standards. In recent years, China has successively promulgated the energy efficiency standards for self-ballasted fluorescent lamps, double-ended fluorescent lamps, single-ended fluorescent lamps, high-pressure sodium lamps and metal halide lamps for general lighting, and the energy efficiency standards for tube-type fluorescent lamps, high-pressure sodium lamps and metal halide lamps ballasts, and formulated their respective energy efficiency limits and energy efficiency grade standards.

The relevant standards in foreign countries are as follows:

1. The United States has been committed to the research of lighting energy-saving standards since the 1991s, and all states have corresponding energy consumption limit standards, which involve lighting energy-saving in residential, office, commercial, sports, transportation, hospitals, schools and other buildings. For example, the lighting power density of American Building Energy Standard (ASHRAE/IESNA 91.1-1999.9), American International Energy Conservation Standard 2113, the lighting power density recommended by California Energy Commission, and the indoor lighting power density of American Institute of New Architecture, etc.

2. The Energy Conservation Law of Japan stipulates the lighting power density (WS) of six types of buildings, such as hotels, offices, hospitals, clinics, schools, shops and restaurants, and the annual lighting electricity consumption time (T).

3. chapter 4 (1998 edition) of Russian standard mг ch 2.11-98 "building energy saving" stipulates the installation power of lighting units.