I have just completed the lighting at Williams Hunt Port Elizabeth and am busy at Chev. 100W LEDs, now light up the place at night. Mercury Vapours have mostly been replaced with 85W CFLs'. Those above the hoists, with 200W. All 8' flourescent fittings have been removed. 5 & 4' Phillips are the replacement. 5 & 4' lamps have also been replaced in existing fittings. This will bring about a huge saving. Problem with the lamps though is the poor quality. I have had to exchange boxes full because they do not work. There have been a lot which did not last 2 weeks before blowing too. The fluorescent tubes are not too bad, about 20 duds out of 600+. The CFLs' however are a pain, about 15% duds. No problems getting them exchanged but a lot of time lost
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