What Is a Focus 3 MK3 ST Interior LED Light Kit?
A Focus 3 MK3 ST interior LED light kit is a set of direct-replacement bulbs that swap into the factory dome, map, reading, vanity, trunk, glove-box and footwell sockets without cutting or rewiring. (chassis codes T15, W16W, V40) AutoKitShop lists 42 Focus 3 MK3 ST LED kits covering model years 1992 to 2021. Kits for this model run from 2-piece to 16-piece sets. Each bulb is rated at 300 lumens and roughly 3x the brightness of the original incandescent lamp, at a fraction of the current draw, with a 50,000-hour service life. Kits are supplied as complete sets with the correct socket adapters, so nothing needs to be ordered separately. If a bulb does not light on first fit, rotate it 180 degrees, because LEDs are polarity sensitive. Colour options are white (6000K), ice blue, warm white (3000K) and purple.
What Is Included in the Focus 3 MK3 ST LED Kit?
Upgrade your Ford Focus 3 MK3 ST with our 10-piece LED interior light kit. Replace every dim factory incandescent bulb with bright 6000K pure white LEDs for a modern, premium cabin experience. Installation takes just 15 minutes with no special tools required.
What LED Bulbs Fit the Ford Focus 3 MK3 ST?
This 10-piece kit contains bulbs that match every interior socket type in your Ford Focus 3 MK3 ST: T10 wedge bulbs for map lights, door lights, footwells, and license plate lights; festoon bulbs for dome lights. Each bulb is polarity-protected and pre-tested. Simply remove the old bulb and push in the LED — no adapters, wiring, or modifications needed. The ultra-slim design fits behind tight lenses with no clearance issues.
How Many Interior Bulbs Does the Ford Focus 3 MK3 ST Have?
Your Ford Focus 3 MK3 ST uses 10 bulbs for a full interior LED upgrade. This includes overhead dome lights, reading/map lights, door courtesy lights, footwell illumination, trunk/cargo area lighting, and where equipped, vanity mirror lights and glove box lights. The kit provides exact replacements for every position with a few spares included.
Does the Ford Focus 3 MK3 ST Need CANbus LEDs?
The Ford Focus 3 MK3 ST uses a CANbus system. Our LEDs include built-in load resistors for error-free operation without warning lights or flickering.
Stock vs LED: What Changes?
| Feature | Stock Bulb | AutoKitShop LED |
|---|---|---|
| Brightness | ~40-50 lumens | ~200 lumens (4-5x brighter) |
| Color | 3000K yellow | 6000K pure white |
| Power | ~5W each | ~1.5W each (70% less) |
| Lifespan | ~1,000 hours | 30,000+ hours (30x longer) |
| Heat | 50-70°C | ~30°C (safe for plastic trim) |
How Do You Install LED Interior Lights in a Focus 3 MK3 ST?
- Use a plastic trim tool to gently pry off the dome light lens
- Remove the old incandescent bulb from its socket
- Insert the new LED bulb into the socket (fits T10 and festoon positions)
- If the LED doesn't light, flip it 180° and reinsert — LEDs are polarity-sensitive
- Test before reassembling each light fixture
- Repeat for all 10 positions — total time about 15-20 minutes
What Is Included in the Focus 3 MK3 ST LED Kit?
Shop the 10-Piece LED Interior Light Kit for Ford Focus 3 MK3 ST at AutoKitShop.com →
Where Can You Buy Focus 3 MK3 ST Interior LED Lights?
Browse the full Ford interior LED lights collection for 42 model-specific kits, or start with one of these:
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