8539.29.40.00 - Designed for a voltage exceeding 100 V

This HTS category, 8539.29.40.00, specifically classifies filament lamps that are designed to operate at voltages exceeding 100 volts. This encompasses a broad range of incandescent lamps used in various applications, from general lighting in commercial and industrial settings to specialized lighting in machinery or equipment where higher voltage is required. The key defining characteristic for inclusion in this subcategory is the operational voltage requirement exceeding the 100-volt threshold.

It is crucial to distinguish this category from its sibling, 8539.29.30.00, which covers filament lamps designed for voltages not exceeding 100 volts. This distinction hinges solely on the rated operating voltage of the lamp. While both are filament lamps and not ultraviolet or infrared lamps, their voltage rating is the sole determinant for their placement within these respective classifications.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. Classification into this specific code is therefore finalized based on the lamp being a filament type, not an ultraviolet or infrared lamp, and explicitly designed for operation at voltages greater than 100 V. Examples include certain types of automotive headlights, industrial floodlights, and high-intensity discharge lamps that utilize filament principles and operate on higher voltage systems.