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SOX 55W low pressure sodium lamp L71RB-55 LS-55-BY22d ANSI L71 T17 bulb

SOX 55W low pressure sodium lamp

The SOX 55W (Part No. LS-55-BY22d / L71RB-55) is an energy-efficient low pressure sodium (LPS) lamp engineered for commercial, municipal, and industrial outdoor lighting applications. Fully compliant with ANSI L71 standards, it features a durable T17 tubular glass bulb with a standard BY22d bayonet base, emitting a 589nm monochromatic yellow light that provides maximum optical clarity and superior fog penetration.

Key Features:
• High Energy Efficiency: Delivers powerful monochromatic light output at 55W with minimal power consumption.
• Direct Industry Standard Replacement: Fully compatible with standard ANSI L71 control gear and outdoor fixtures.
• Superior Fog & Haze Penetration: Monochromatic 589nm yellow light minimizes light pollution and glare in harsh weather conditions.
• Compact T17 Dimensions: Measures 425mm x 54mm (16.7" x 2.13") for standard fixture fitting.

Applications:
Widely used for outdoor lighting across highways, municipal streets, parking lots, airport perimeters, bridge underpasses, and industrial yards.

(Contact us for bulk pricing, spec sheets, or OEM wholesale quotes.)

  • Tech Specs

    • Product Model: SOX 55W
    • Order Code / Part No.: LS-55-BY22d
    • Industry Ref / Cross Code: L71RB-55
    • ANSI Code: ANSI L71 Compliant
    • Wattage: 55W
    • Bulb Shape: T17
    • Cap / Base: BY22d
    • Dimensions: 425mm x 54mm (16.7" x 2.13")
    • Light Wavelength: 589nm (Monochromatic Yellow)
    • Application: Street, highway, and industrial outdoor lighting

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