Ford Truck Lighting Upgrades for Headlights, Turn Signals & Brake Signals
Underground Lighting's collection includes Ford LED lights and HID headlight upgrades designed specifically for Ford F150, F250, and F350 trucks, focusing on three core automotive lighting systems: headlights, turn signals, and brake signal lighting. These lighting upgrades replace compatible factory halogen or OEM HID bulbs with high-efficiency LED or xenon HID technology, improving visibility, signal response, and vehicle recognition on the road.
Modern automotive lighting systems rely on semiconductor diode technology, p-n junction electroluminescence, in LEDs or xenon gas-discharge arc technology in HID bulbs. Both technologies offer different performance characteristics than halogen bulbs, including higher published output on selected products, immediate LED illumination, and different electrical and thermal-management requirements.
LED upgrades are widely used for vehicle signaling applications such as turn signals and brake lights, because LEDs illuminate without the warm-up required by a heated incandescent filament. HID systems remain common in factory projector headlights; the current Ford D3S replacement pair is rated at 35W and 3300 lumens, with 6000K white and 8000K white/blue options.
This Ford lighting collection includes OEM-fit HID replacements, LED headlight and fog-light upgrades, plug-and-play LED signal bulbs, and reverse-light replacements, each matched to specific Ford truck electrical systems, model years, and bulb socket standards.
Product Types in This Ford Lighting Collection
1. D3S HID Headlight Replacement Bulbs
OEM-type xenon HID bulbs designed for compatible projector headlight systems, including the 2013–2014 Ford F-150 with factory D3S HID headlights.
The current Underground Lighting Ford D3S pair is specified at:
- 35W
- 3300 lumens
- 6000K white or 8000K white/blue
- Direct compatibility with the factory 35W AC ballast
- Plug-and-play D3S fitment
These are replacement xenon capsules for an existing D3S HID system rather than a conversion kit for a factory halogen headlight.
2. LED Front Turn Signal Bulbs (No Hyperflash)
Vehicle-specific front signaling LEDs use built-in resistors and CANbus-compatible electronics to maintain the expected electrical load and prevent hyperflash on their specified Ford applications.
Current applications include products for:
- 2015–2018 Ford F-150 / F-250 / F-350
- 2019–2021 Ford F-150 / F-250 / F-350
- 2020–2023 Ford F-150
3. LED Rear Brake / Turn Signal Bulbs
Dual-function rear signaling LEDs replace compatible dual-filament or multi-function factory bulbs such as 3157 / 7443 / 4257 types used for brake, parking, and turn-signal functions.
The collection includes:
- 1997–2020 Ford F-150 / F-250 / F-350 red 3157 rear brake/turn replacements
- 2021–2025 Ford F-150 red 4257 rear brake/turn replacements
Selected Ford rear-signal bulbs use built-in resistors, non-polar/CK-compatible circuitry, metal heatsinks and cooling fans, reducing the need for separate external load resistors on their specified applications.
4. Rear Turn Signal LED Bulbs (STX Models)
Designed for 2021–2023 Ford F-150 STX models, these vehicle-specific 4257 amber rear turn-signal bulbs use integrated resistors to maintain the correct flash rate and help prevent CANbus bulb errors.
The collection also includes related Ford lighting upgrades for:
- H13/9008 high/low beam headlights
- H11 low-beam headlights
- 9005/HB3 high beams
- H10 fog lights
- 3156/3157 and 921/T15 reverse lights
Exact availability and fitment vary by model year, trim, headlight assembly, and lamp position.