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A Philips (European) SDW-TG mini white HPS in the supermarket of "Mega Bull" in Castra center, Haifa
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Installed in a fixture desigend for the larger SDW-T white HPS and possibly with the same magnetic ballast for the original lamp as it is flickers.
Is HID lamps that operated by electronic ballasts operated at low frequency (To prevent resonance), flickers?
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