2020-2022 Super Duty Reverse (4257 LumX-FC)

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  • Regular price $69.99

  • Description
  • Specs
  • Reviews


Will NOT work on Super Dutys with OEM LED Tail Lights

Fan Cooled Technology in a replacement bulb! 

(Sold as set of 2 Bulbs)


LumX has been pushing the boundaries of what is possible when it comes to external LED bulbs. While other manufacturers focus on headlight bulbs, we're trying to create extremely bright, efficient replacement bulbs for other applications. 


The LumX FC series is the latest example of this push. We packed 50 separate EMC LED chips onto this one bulb! This creates a staggering 2000 Lumens PER BULB! This would not be possible without an efficient cooling method. For this we designed, from what we've seen, to be one of the first reverse lights with a built-in electronic fan to cool the bulb! 


There are certain applications where our normal heat sink cooled reverse light set will not work. For those applications we've created the FC series! "Fan Cooled"


This creates an extremely universal bulb that will work on any application where the socket fits! 


Bulb plugs into a circuit base? ☑️

Vehicle have blind spot monitoring? ☑️

Long as its a 4257 base, this bulb will fit ☑️



Socket Type4257

Cooling Method - LED's cooled by electric fan mounted on top of bulb

Fully Integrated CanBus - ERROR FREE (Will not cause error messages on dashboard or flicker)

Lumens - 2000 Lumens Per Bulb 

Color - 6000K Pure White (No Blue Tint)

LED Chips  - EMC-2016

Warranty - 1 Year 

Voltage - DC 9V-20V

Lifespan - 30,000 Hours


Power - 21.6~28.8W

Customer Reviews

Based on 5 reviews
Tom Skladzien
Super Duty Reverse

Super impressed on how bright they are compared to stock bulbs. Going to add these to Jeep too.

Charlie in Oklahoma
Reverse LEDs are awesome

They are crazy bright. They are floodlights, not spotlights but are excellent as reverse lights. I will be getting more for my other vehicles. These are on a 2022 F250.

Jeffrey Gamazon

2020-2021 Super Duty Reverse (4257 LumX-FC)

Michael Teixeira F
unbelievably bright

These reverse lights are the best . Now I can see when I'm backing down my street or into the driveway. When at supermarket etc , When backing into a spot or backing out of a spot people can see the lights on . I would recommend them to anyone . That needs a little extra light at night .

Nate DeForge

Works great