UNDP - United Nations Development Programme

Feb 07, 2014 · 220 V, 50 HZ single phase supply, A wiring diagram, wattage, voltage and current ratings shall be printed on the body of tile ballast. The power loss shall not more than 10watts or 40 watts ballast. The ballast shall be noiseless in operation without any whistling sound. The manufacturer shall be called ................
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