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Sylvania Unalux -HPS retrofit for mercury ballasts
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I am so happy to finally get one of these - it took me years to find one at a reasonable price. This seems to be a very new one due to the etch, and I was happy to see that it still uses the traditional Penning arc tube fill and starting antenna (it glows neon red like a SOX lamp when switched on). I have two other HPS retrofit lamps, a 220w that uses filaments and a bimetal switch, and a 360w one that uses a neon glowbottle. Both of those lamps have the standard xenon fill.
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