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        Low-pressure sodium vapour lamps with a U-shaped discharge tube enclosed in a clear tubular outer bulb under vacuum that is maintained by a solid-state getter


        Highest reliability ensures the lowest total cost of ownership
        Stable power consumption through life maintains low energy use and contributes to low cost of ownership
        Extremely high luminous efficacy; the most efficient light sources for road, security and tunnel lighting


        Philips Solid-state Getter (PSG) for highest reliability over life
        Uniform sodium distribution in the discharge tube by means of dimples for a more stable discharge, stable power consumption, shorter run-up time, higher efficacy and better lumen maintenance and lamp life
        Lower heat losses than standard SOX, resulting in even higher lamp efficacy
        Monochromatic yellow color with non-existent color rendering
        Burning position SOX-E 36W: base-up ±110° (universal burning position when luminaires installed in shock-free positions)


        Road lighting, railway marshalling yards and crossings, airports, harbours and docks, quarries, foundries and rolling mills
        Security and orientation lighting

        Warning & Safety

        Lamps may use electronic or electromagnetic control gear
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