ЛД 20-4
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Category:
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Encyclopedia chapter: General purpose low-pressure mercury discharge fluorescent lamps
Power (W): ![](data:image/png;base64,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)
Luminous flux (lm): ![](data:image/png;base64,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)
Average life (h): ![](data:image/png;base64,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)
Diameter (mm): ![](data:image/png;base64,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)
Length (mm): ![](data:image/png;base64,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)
Bulb type: ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABsAAAAOCAYAAADez2d9AAABwklEQVQ4jb3UMWgVQRgE4C9HkCASAhswiogoWkQFEbSyEtHG1UoQBAMiSNAgFmJjZyFWiY0iWohaBEUtrtAqiJWIWFhIiBYSQkjhhRQSgsg+i9sXX87Ub5o7dv9/Zva/2etptVq6haJrSt0W64WiKsdxET+wD7/y/uMU4lhRlXdxFoMNg5dTiPcyxwAe4FiueY8XKcRn7eJ24x5MphD3YwWncRsHIYV4NYW4GaNYwg0cwqsO4ddYxl5swRc8LaryVFNsCA/z+yxm8AG/G5OYzyQTKcRPKcSFjr3hbGwhhbiCW1l8uCm2A0VRlRuwNYU4h+/ob4htxxyO+h8jHYbhAjbic3uhNz93pxAXoajK+exwtqjK2CDchT/59GuQQnyb+4/jHM5jEu/WiLWFMmY6COYbnN/y+temWFGVBa7gDqZxLYU40VnT22zyL4nroVCfbD3cVAdnLIX4KBs4ieUU4tSqWFGVm3Akkx3Oo1hKIX5sEA5gW/62/SnEn7l/CNfRhzOZbxH38QRT0NNqtRRVeUAd9T51tHdm4hPqsb5U37FB9TVZycZGUojPi6ocxhuM45I6cNSJHk0hTq+KdQtd/V39BQ44kNual+oYAAAAAElFTkSuQmCC)
Cap/base type: ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD4AAAAOCAYAAAB3u6/pAAADcUlEQVRIic3XXYhWRRgH8N8eRJctYmkWFVtNrDTsA0ssDDILMhGniy4qpJCgiz4QiZIQL7qI6EL6QkiJioqI7EPKYyBRQUIqRGlGXhgsIWEle0JEQhaZt4szB86+rbVrKj7w8nLmzPz/z/8/zzzD6el0Oi70KKpyEgZTiL+cNcyzBXSuIoveg/vPKu5pyCZsSFGVF///dMaMFZiNd8fDU1RlUVTlwH9p6GlKvajKldiMPlyKEczDE2q3B4w26vEU4qt57UY8lceP4jheSCFuGSOxBeodTFiTQnzzX0TMwT6sSyG+Nh6eoiofwyv5cVLmOYq7cDCFeEojpKjKPqzFdZiGBuhwCnFtCnEaHsUxPI1F2NbKcXpOYj3uxBpsLqry2W4xKcT9uA1v4fLTic6xCSfx/gR4LsNuXITFmIKZKcQDjejGEWoXyxTisWzE87gnhZhagEdwAC+nEEe6EtyDfSnEF/P6g/gLve1JRVVOxd0YxjdZyJhRVOUKLMeDKcTjE+Dpz7ifYSl2YAMOtvEb4TPxUTOYQjxcVOXirlxm4VfcgZ3tF62SvxKrEPOrpuQUVXk1vlSbNxcz8I+KyHMn4TnsTyG+NxEedWnPVW/UESzDLUVVLsSxFOKJtvA/Zdey0/dhpKjKEWxNIe7CFTiFw2Mlm2NpTmYBhozuCQ/hixTi6qIq+7MJU06DswrX4/Yz4NmEPY1hRVVOx9dY1u4nzYKT6s4pixvGw+oz3ZT1zxhOIY4qmQzeW1RlXwrx9RTiItyc17V3dAW2Qj5SQ+pG2o01Q73bO7LhE+UZ0uo/KcTfsQtXjcLK/z/ihjzxc7yNoRTihhTi3tbcU8aOn7Avl6gU4vd4Sb1rTfRiTut5RF3u3bEeU7HuDHl+wG9FVV5SVGUzfiP+aAM1wrfhgaIqlxdVuSQL774v+zFYVOXkoioHut71qc/VIORSfjLjNLETG4uqvDZfS6swu30v57J8BFtSiIfGED4enr2YrD7bA7njz9fqYYy+x5fg0yzwK/UO3YqP1Xf4QCY9mQ1bnUL8IK+dpS7PpmP34h0809wAWdR3GWey+hj14wQWphAPFVX5IVbimhTiULfqcfIMZiPmqyvnRM71k1FgnU7nvP96hrffO8bYTT3D2zs9w9vfOC85XCgfKUVVfqvuAfNSiMPnmu9vGesUntZtwiwAAAAASUVORK5CYII=)
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