![DTI & DOE Joint Circular 09-05 Series of 2009](https://bps.dti.gov.ph/components/com_edocman/assets/images/icons/32x32/pdf.png)
Department of Trade and Industry (DTI) and Department of Energy (DOE) Joint Circular No. 09-05 - Implementing Guidelines for the Performance and Energy Labeling Requirements on AC Supplied Electronic Ballast for Tubular Fluorescent Lamps covered by (1) PNS IEC 60929:2006, AC supplied electronic ballast for tubular fluorescent lamps - Performance requirements and (2) PNS 2050-4:2007, Lamps and related equipment - Energy labeling requirements - Ballasts