Swaziland Exports of thermionic, cold cathode or photo-cathode valves and tubes to Lesotho was US$27 during 2014, according to the United Nations COMTRADE database on international trade. Swaziland Exports of thermionic, cold cathode or photo-cathode valves and tubes to Lesotho - data, historical chart and statistics - was last updated on May of 2024.