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SITCSection 6
U.S. imports of open glass envelopes and glass parts for electric lamps and cathode-ray tubes (SITC 66493) totaled $652K in April 2026, traded with 12 countries.
Importers of Open Glass Envelopes and Glass Parts for Electric Lamps and Cathode-Ray Tubes paid $147K in duties in April 2026 — an effective duty rate of 27% on $555K in dutiable value, based on actual customs collections rather than the published tariff schedule. Open Glass Envelopes and Glass Parts for Electric Lamps and Cathode-Ray Tubes imports of $652K in April 2026 ran 30% above the year-to-date monthly average of $500K.
Last updated: April 2026 dataOpen glass envelopes—including bulbs and tubes in unfinished form—and glass components destined for electric lamps, cathode-ray tubes, and similar devices are intermediate goods that feed lighting and display manufacturing lines. The 'open' designation is the key classification criterion: these are blanks not yet sealed or fitted with electrodes, distinguishing them from finished lamp bulbs. Demand for traditional incandescent and CRT envelope glass has declined sharply with the shift to LED and flat-panel technologies, though specialty lamp envelopes for industrial, medical, and UV applications remain actively traded.
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An open glass envelope is an unfinished blank—it has not been sealed, evacuated, or fitted with electrodes. Once the envelope is sealed and completed into a functional lamp or tube, it reclassifies as a finished electrical article. The open/unfinished status is therefore the defining criterion that keeps these components within the glass products heading rather than the electrical equipment headings.
UV germicidal lamps, high-intensity discharge (HID) lamps for industrial and horticultural use, quartz halogen envelopes, and specialty medical or scientific lamp tubes continue to require glass envelopes that cannot be directly substituted by LED technology. These niche segments sustain ongoing import demand even as general-service incandescent envelope trade has contracted.
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Monthly import values over time