High-Pressure Sodium Lamp Arc Tube
Translucent polycrystalline alumina arc tube containing sodium/mercury amalgam for high-pressure discharge lamps used in street lighting. Core functional part of heading 8539 lamps under HTS 8539.90.00.00.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If industrial ceramic tubes
Refractory alumina ceramics not for electrical discharge classify under Chapter 69.
If complete HPS fixtures
Assembled high-intensity discharge lighting falls under Chapter 94.
If for projection systems
Specialized HID arc tubes for cinema projectors may fall under TV/projection parts.
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Import Tips & Compliance
• Include operating pressure specs (50-100 bar) and sodium vapor containment certification
• Provide burn-time test data (>20,000 hours) confirming HID lamp performance
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