7011.10 - For electric lighting:

This HTS category, 7011.10, encompasses glass envelopes, also known as bulbs and tubes, that are open and do not have fittings. These components are specifically designed for use in electric lamps and other electric light sources. The key characteristic is that they are manufactured from glass and are integral to the functioning of lighting devices, but they are not complete lamps themselves.

Category 7011.10 is distinguished from its siblings by its specific application for electric lighting. Category 7011.20 covers similar open glass envelopes and parts, but exclusively for cathode-ray tubes. The "Other" category (7011.90.00.00) is a residual classification for any open glass envelopes and parts not otherwise specified, thus highlighting the specific focus of 7011.10 on lighting applications.

Within this category, further subdivision is made to differentiate between specific types of lighting applications. Subcategory 7011.10.10.00 details bulbs specifically intended for incandescent lamps, representing a distinct type of electric lighting. The subcategory 7011.10.50.00 serves as a broader classification for all other types of glass envelopes and parts for electric lamps and light sources not meeting the criteria for incandescent lamp bulbs. This differentiation aids in precise tariff application based on the intended end-use within the lighting sector.