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Open the previous siteThe Philips SOX-E 91W low-pressure sodium lamp is a tubular discharge lamp with BY22d bayonet base, 775mm long. It emits 17,400lm of monochromatic yellow-orange light (1800K), with a very high efficacy of 192lm/W.
Monochromatic light does not allow colours to be distinguished, but it ensures excellent visibility of contrasts: it is used in street lighting, road junctions, tunnels, port areas and security zones where maximum efficiency is required.
It works with the low-pressure sodium lamp ballast of the same wattage, already fitted in the luminaire; it must not be connected directly to the mains. It is non-dimmable. It replaces 91W SOX-E low-pressure sodium lamps with BY22d base. The average life is 18,000 hours.
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