Ballasts for tubular fluorescent lamps, Specification for ballasts for use with lamps used in the UK not included in BS 1853 'Tubular fluorescent lamps for general lighting service' Part 1 'Specification for internationally specified lamps'— 11 стр.
Ballasts for tubular fluorescent lamps, Specification for ballasts for use with lamps used in the UK not included in BS 1853 'Tubular fluorescent lamps for general lighting service' Part 1 'Specification for internationally specified lamps'— 11 стр.