BPS PHILIPPINE NATIONAL STANDARD 2050-2:2007 ICS 29:140.30, January 17, 2011
LAMPS AND RELATED EQUIPMENT – ENERGY EFFICIENCY AND LABELING REQUIREMENTS – PART 2: SELF-BALLASTED LAMPS FOR GENERAL LIGHTING SERVICES
National Administrative Register January 17, 2011
Text Available at Office of the National Administrative Register, U.P. Law Complex, Diliman, Quezon City