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SOX 135W low pressure sodium lamp L73RB-135 LS-135-BY22d ANSI L73 T21 bulb

SOX 135W low pressure sodium lamp

The SOX 135W (Part No. LS-135-BY22d / L73RB-135) is an energy-efficient low pressure sodium (LPS) lamp engineered for commercial, municipal, and industrial outdoor lighting applications. Fully compliant with ANSI L73 standards, it features a durable T21 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 135W with low power consumption.
• Direct Industry Standard Replacement: Fully compatible with standard ANSI L73 control gear and outdoor fixtures.
• Superior Fog & Haze Penetration: Monochromatic 589nm yellow light minimizes light pollution and glare in harsh weather conditions.
• T21 Dimensions: Outer glass tube measures 775mm x 66mm (30.5" x 2.60").

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 135W
    • Order Code / Part No.: LS-135-BY22d
    • Industry Ref / Cross Code: L73RB-135
    • ANSI Code: ANSI L73 Compliant
    • Wattage: 135W
    • Bulb Shape: T21
    • Cap / Base: BY22d
    • Dimensions: 775mm x 66mm (30.5" x 2.60")
    • Light Wavelength: 589nm (Monochromatic Yellow)
    • Application: Street, highway, and industrial outdoor lighting

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