1. BS EN IEC 61347-2-2. Controlgear for electric light sources. Safety. Part 2-2. Particular requirements for DC or AC supplied electronic step-down convertors for filament lamps (21st April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (13 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗