... energy saving lamp 1.energy saving up to 80% 2.flicker free,instant start,high lumen 3.life up to 10,000hrs 3T half spiral energy saving ... of tube:10mmdiameter of whole tube:53mmdiameter of plastic:48mmlamp base:B22/E27lifetime:6,000/8,000/10,000hrscolor temperature:2 ... , pendant lamps, supermarkets, restaurants, shops, hotels etc 3T half spiral energy saving lamp