8539.22.80.40 - Of a power 15 W or more but not exceeding 150 W

This HTS category, 8539.22.80.40, specifically classifies filament lamps designed for general illumination with a power output ranging from 15 watts (W) up to and including 150 watts (W). These lamps fall under the broader heading of electrical filament or discharge lamps and are characterized by their incandescent or halogen filament technology. They are distinct from ultraviolet or infrared lamps within the same broader classification.

The crucial distinguishing factor for this subcategory is its precise power range. It encompasses lamps that are more powerful than low-wattage incandescent bulbs but do not reach the higher wattages covered by other classifications. This specific power threshold is a primary criterion for accurate classification, ensuring that lamps intended for a variety of household and some specialized lighting applications are correctly identified.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, the classification is complete at this level, with the defining characteristic being the power rating of 15 W to 150 W for filament lamps not exceeding 200 W and for voltages exceeding 100 V. Classification within this node relies solely on meeting this specific wattage requirement, differentiating it from lamps with lower or higher power outputs.