Fused Quartz Bulb Envelope
A high-purity fused quartz open bulb envelope used in UV lamps and high-temperature light sources. Classified under HTS 7011.90.00.00 as an open glass envelope for electric lamps without fittings. Fused quartz qualifies as glass per chapter notes.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 6.6% | +35.0% | 41.6% |
| 🇲🇽Mexico | 6.6% | +10.0% | 16.6% |
| 🇨🇦Canada | 6.6% | +10.0% | 16.6% |
| 🇩🇪Germany | 6.6% | +10.0% | 16.6% |
| 🇯🇵Japan | 6.6% | +10.0% | 16.6% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically for cathode-ray tubes
Bulb envelopes designed for CRT displays fall under the specific CRT subheading.
If quartz for high-temperature applications beyond lamp envelopes
Other quartz articles not qualifying as lamp envelopes go to Chapter 70 heading 7020.
If made of ceramic rather than glass/quartz
Similar lamp envelopes of ceramic construction classify under porcelain/ceramic headings.
Not sure which classification is right?
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Import Tips & Compliance
• Verify fused silica purity meets chapter definition of 'glass' including fused quartz
• Provide manufacturer specs confirming open design without fittings or attachments
• Avoid misclassification as finished lamps by ensuring no electrical components included
Related Products under HTS 7011.90.00.00
Borosilicate Lamp Tube
Open-ended borosilicate glass tube used as envelope for fluorescent lamps and gas discharge tubes. Falls under HTS 7011.90.00.00 as 'other' glass envelopes for electric light sources without fittings. Meets glass definition without absorbent/reflecting layers per notes.
Halogen Lamp Quartz Tube
Transparent fused quartz tube envelope for halogen cycle lamps operating at high temperatures. HTS 7011.90.00.00 covers open glass parts for electric lamps excluding fitted assemblies. Fused quartz explicitly included as glass per tariff notes.
Neon Sign Glass Tube
Soda-lime glass tubing bent to shape for neon/gas discharge signage lamps. Classified in HTS 7011.90.00.00 as open glass envelopes for electric light sources without fittings. Cutting and bending don't affect classification per chapter notes.
Mercury Vapor Lamp Bulb
Open hard glass bulb envelope for high-pressure mercury vapor discharge lamps. HTS 7011.90.00.00 for other glass envelopes used in electric light sources without electrode fittings. Standard UV-transmitting glass composition.
Xenon Flash Tube Envelope
Precision borosilicate glass tube envelope for xenon flash lamps used in photography and strobes. Open design without end fittings qualifies for HTS 7011.90.00.00 as glass envelope for electric light sources. High shock resistance for pulsed operation.
Infrared Lamp Glass Bulb
Open ruby-tinted glass bulb envelope for infrared heating lamps and therapeutic lights. HTS 7011.90.00.00 covers glass parts for electric lamps without reflecting coatings per chapter notes. Tinting achieved through glass batch additives.