It is not surprising to find that some bulbs with an active cooling system are made too big and cannot be easily installed or create noise when working. All the problems will end with the emergence of this high-performance fanless bulb --- NF. These bulbs are popular because of the fanless design, offering a noiseless driving experience, ZERO fan failure and a longer lifespan compared to fan led light bulbs. NF bulbs are designed to mimic the filament of halogen, providing a standard light beam but brighter than that. Read on to learn more excellent features of NF bulbs.