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Street Sodium Lamp Helios 250W WLS CITY E40, High-pressure sodium, E40 base
Helios 250W WLS CITY E40 is a high-pressure sodium street lamp engineered for public and outdoor lighting. With a rated power of 250 watts and an E40 screw base, this lamp produces the characteristic warm amber light of sodium discharge technology and is intended for use in roadways, parking lots, and open outdoor areas where long service life and high luminous efficacy are required.
The lamp delivers high luminous efficacy and stable light output over long operating hours, reducing the need for frequent replacements. Its E40 screw base enables straightforward installation in luminaires designed for high-pressure sodium lamps. The warm amber color temperature improves contrast under low-light conditions and is effective for standard outdoor and street lighting applications.
Install the lamp into a compatible luminaire with an E40 socket and an appropriate ballast or control gear rated for high-pressure sodium lamps. Ensure power is disconnected before replacing the lamp. After installation, allow a short warm-up period for the lamp to reach stable light output and color. Follow the luminaire and ballast manufacturer instructions for safe operation and disposal guidelines for discharge lamps.
Use the lamp in fixtures designed for high-pressure sodium technology and rated for the lamp’s wattage. For optimal performance, pair with a suitable ballast and perform periodic inspections of the luminaire to ensure proper ventilation and mechanical stability.
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