8539.22 - Other, of a power not exceeding 200 W and for a voltage exceeding 100 V:

HTS Code 8539.22 encompasses incandescent filament lamps, excluding tungsten halogen types, that operate at a voltage exceeding 100 volts and have a power rating not exceeding 200 watts. This broad category covers a variety of general-purpose lighting applications where the filament is the primary light-emitting element.

This classification distinguishes itself from its sibling category, 8539.21 (Tungsten halogen), by explicitly excluding lamps utilizing a halogen gas cycle. Therefore, while both are filament lamps, the presence or absence of halogen gas within the bulb is a key differentiator for correct classification.

Within 8539.22, further distinctions are made to accommodate specific types of filament lamps. Subcategory 8539.22.40.00 is designated for Christmas-tree lamps, recognizing their specialized application and often decorative nature. The remaining items that fit the primary criteria of this code, but are not Christmas-tree lamps, fall under the broader 8539.22.80 (Other) subcategory.