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Sodium lamp Osram Vialox 250 W E40, 33 200 lm, 2000 K, 100 V
Osram Vialox high-pressure sodium lamp, 250 W with an E40 screw base, provides very high luminous flux of 33,200 lm and a warm sodium colour temperature of 2000 K. The lamp is designed for 100 V AC, 50 Hz operation and draws 2.95 A. Its transparent bulb and compact dimensions (diameter 47 mm, length 257 mm) make it suitable for a variety of outdoor and industrial luminaires where concentrated warm white-yellow light and high lumen output are required.
The Osram Vialox 250 W sodium lamp combines high luminous efficacy with a long-established sodium light spectrum that is effective for roadway and area illumination. Its E40 base ensures compatibility with standard high-intensity fixtures, while the transparent envelope supports concentrated light output. Rated for 100 V operation and a stable current draw, the lamp is suited to installations designed for high-pressure sodium technology. Compact physical dimensions facilitate installation in both open and enclosed luminaires specified for outdoor use.
Install the lamp into fixtures compatible with E40 base and high-pressure sodium lamps. Ensure the luminaire and control gear are rated for 100 V AC operation and provide the correct ignitor/ballast for high-pressure sodium technology. The lamp may be used in open or enclosed luminaires specifically rated for outdoor use; follow the luminaire manufacturer's mounting and safety instructions. Allow the lamp to reach stable operating temperature for full luminous output and colour characteristics.
For reliable performance, pair the lamp with appropriate ballasts or control gear specified for 100 V high-pressure sodium lamps and only use in luminaires that support high-temperature operation and outdoor exposure. Avoid frequent on/off switching to prolong lamp life and maintain stable light output.
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