Fan vs Fanless Led Headlights

Many car owners upgrade their factory headlights by swapping halogen bulbs to LED. These bulbs provide brighter lighting, form right beam in both projector and reflector headlights and last much longer, than regular halogen bulbs. The only drawback of the LED bulbs is excessive heat they produce. Hence, such bulbs come equipped with a cooling unit that allows reducing temperature. Modern LED bulbs for high and low beam upgrade feature fan or fanless construction. So, which bulbs are better? Let us consider pros and cons of both constructions, so that you could determine, which ones to consider for your vehicle.

LED headlight bulbs: operation temperature

To provide light output that is sufficient for forming quality light beam, LEDs use the light emitting diode itself and use a built-in microprocessor. Combination of these two elements produces excess heat that has to be eliminated to prevent melting. Yes, LED bulb features lower resistance, than halogen bulbs, yet it is the processor and powerful diode, that produce heat. So, such bulbs require a powerful cooling unit to operate.

Fan vs Fanless LEDs: comparison & explanation

Leds that come equipped with fan use active cooling. It means that fan rotates and reduces heat. Yet some bulbs with active cooling units are made too big and cannot be normally fitted into the headlight assembly. Yet, there are slim fans that do not require a lot of space in a headlight.

LEDs with passive cooling, or fanless, feature either braided heat sinks, or get cooled by means of internal drivers. Internal driver cooling method is third generation of LED heat elimination. Fanless bulbs feature slimer filament, compared to the LEDs equipped with cooling fan.

There are some things to consider, if you are selecting an LED headlight conversion kit for a pickup truck. More: https://bullyusa.com/best-led-bulbs-for-trucks.html