DTI & DOE Joint Circular 09-04 Series of 2009

Department of Trade and Industry (DTI) and Department of Energy (DOE) Joint Circular 09-04 - Implementing Guidelines for the Performance and Energy Labeling Requirements on Ballast for Tubular Fluorescent Lamps covered by (1) PNS IEC 60921:2006, Ballast for tubular fluorescent lamps - Performance requirements and (2) PNS 2050-4:2007, Lamps and related equipment - Energy labeling requirements - Ballasts