28-44mm Festoon LED Bulb | All Sizes for Every Interior Position | 2 Bulbs
Don't know what festoon size you need?
Festoon bulbs come in 6 common interior sizes. Use the lookup below to find yours in 30 seconds — by vehicle, by position, or by measuring your existing bulb.
1. Find your size by vehicle
Driveon's verified fitment database — these vehicles use Festoon LEDs in the positions shown. Click any size to go to the dedicated product page.
| Vehicle | Years | 28mm | 31mm | 36mm | 42mm |
|---|---|---|---|---|---|
| Chevrolet Equinox | 2022–2024 | — |
31mm Vanity |
— | — |
| Chevrolet Silverado 1500 | 2014–2015 | — | — |
36mm Vanity |
42mm Map, Dome |
| Chevrolet Silverado 1500 | 2016–2018 | — | — |
36mm Vanity |
42mm Map, Dome |
| Chevrolet Silverado 1500 | 2019–2024 | — | — |
36mm Vanity |
— |
| Chevrolet Suburban | 2015–2020 |
28mm Vanity |
— | — | — |
| Chevrolet Tahoe | 2015–2020 |
28mm Vanity |
— | — | — |
| Chevrolet Traverse | 2018–2021 | — | — |
36mm Trunk |
— |
| GMC Sierra 1500 | 2014–2015 |
28mm Vanity |
— | — |
42mm Dome |
| GMC Sierra 1500 | 2016–2018 |
28mm Vanity |
— | — |
42mm Dome |
| GMC Sierra 1500 | 2019–2024 |
28mm Vanity |
— | — | — |
| GMC Yukon | 2015–2020 |
28mm Vanity |
— | — | — |
| GMC Yukon XL | 2015–2020 |
28mm Vanity |
— | — | — |
| Honda Accord | 2008–2012 |
28mm Vanity |
31mm Map, Dome |
— | — |
| Honda Accord | 2013–2015 |
28mm Vanity |
— | — | — |
| Honda Accord | 2016–2017 |
28mm Vanity |
— | — | — |
| Honda CR-V | 2007–2011 | — |
31mm Map, Dome, Trunk |
— | — |
| Honda Civic | 2014–2015 |
28mm Vanity |
— | — | — |
| Honda Odyssey | 2011–2017 |
28mm Vanity |
31mm Map, Dome, Trunk |
— | — |
| Honda Odyssey | 2018–2024 | — |
31mm Trunk |
— | — |
| Hyundai Elantra | 2024–2025 |
28mm Trunk, Vanity |
31mm Dome |
— | — |
| Hyundai Sonata | 2020–2024 | — |
31mm Map, Dome |
36mm Trunk |
— |
| Hyundai Tucson | 2022–2025 | — |
31mm Dome |
36mm Trunk |
— |
| Jeep Gladiator | 2020–2024 | — |
31mm Map |
— | — |
| Jeep Wrangler | 2007–2017 | — | — | — |
42mm Map, Trunk |
| Jeep Wrangler | 2018–2024 | — | — | — |
42mm Map, Trunk |
| Mazda CX-5 | 2013–2016 |
28mm Vanity |
31mm Map, Dome |
— | — |
| Mazda CX-5 | 2017–2024 |
28mm Vanity |
31mm Map, Dome, Trunk |
— | — |
| Nissan Pathfinder | 2022–2024 | — |
31mm Trunk |
— | — |
| Nissan Rogue | 2021–2025 | — |
31mm Trunk |
— | — |
| Ram 1500 | 2013–2015 | — | — | — |
42mm Map, Dome |
| Ram 1500 | 2013–2018 | — | — | — |
42mm Map, Dome |
| Ram 1500 | 2016–2018 | — | — | — |
42mm Map, Dome |
| Subaru Crosstrek | 2024–2025 | — |
31mm Map, Dome |
— | — |
| Subaru Forester | 2019–2025 | — |
31mm Dome |
— | — |
| Subaru Outback | 2020–2025 |
28mm Vanity |
31mm Map, Dome |
— | — |
| Toyota Camry | 2025–2025 | — |
31mm Dome |
— | — |
| Toyota Highlander | 2020–2025 | — |
31mm Trunk |
— | — |
| Toyota Prius | 2010–2015 | — |
31mm Dome, Trunk |
— | — |
| Toyota Prius | 2016–2022 | — |
31mm Dome |
— | — |
| Toyota Prius C | 2012–2015 | — |
31mm Dome |
— | — |
| Toyota Prius V | 2012–2018 | — |
31mm Dome |
— | — |
| Toyota RAV4 | 2019–2025 | — |
31mm Dome |
— | — |
| Toyota Sequoia | 2008–2017 | — | — | — |
42mm Trunk |
| Toyota Sequoia | 2018–2022 | — |
31mm Vanity |
— | — |
| Toyota Sienna | 2011–2020 |
28mm Vanity |
31mm Trunk |
— | — |
| Toyota Sienna | 2021–2024 |
28mm Vanity |
— | — | — |
Verified from XenonPro, Lasfit, SEALIGHT, AUXITO, OEM owner manuals, and platform-specific forums. Click a size to see the dedicated product page.
2. Find your size by interior position
If you know which light you're replacing, this is the fastest path:
| If you're replacing... | Most likely size | Also possible |
|---|---|---|
| Vanity mirror | 28-29mm | 31mm or 36mm (rare) |
| Map light | 31mm (sedan/SUV) | 42mm (truck/large SUV) |
| Dome light | 31mm (most cars) | 36mm or 42mm (larger vehicles) |
| Trunk / cargo light | 42mm or 44mm | 31mm or 36mm in some sedans |
| Glove box | 28-29mm or 39mm | Or T10 wedge — not always festoon |
| Step well / Courtesy | 39mm | 28mm in compact cars |
3. Measure your existing bulb
If your car isn't in the table and you know the position, the surest method is to pull the old bulb and measure end-cap to end-cap:
- Pop the lens cover off the affected light.
- Slide one end-cap of the festoon out of its spring contact, then lift the bulb free.
- Measure with a ruler from end-cap to end-cap (millimeters).
- Match to one of these six sizes: 28mm · 31mm · 36mm · 39mm · 42mm · 44mm
If your measurement is between two sizes (e.g., 30mm), the larger Festoon socket accepts the smaller bulb in many cases — but check the spring tension. When uncertain, our by-position guide above (or the YMM finder at /pages/fitment) will narrow it down.
Festoon size comparison chart
All six sizes Driveon stocks, with the common OEM part numbers and primary uses:
| Size | Length | Part numbers | Primary use |
|---|---|---|---|
| 28mm | 28-29mm (1.10") | DE3021, DE3022, 6612F, 6614F | Vanity mirror, glove box, step light |
| 31mm | 31mm (1.22") | DE3175, 6428 | Map light, dome light (sedans/SUVs) |
| 36mm | 36mm (1.41") | 6418, 6411, DE3423 | Dome light (larger vehicles), some vanity/trunk |
| 39mm | 39mm (1.54") | 6461 | Glove box, step well, smaller cargo |
| 42mm | 41-42mm (1.63") | 211-2, 578 | Dome / map / trunk (trucks & SUVs) |
| 44mm | 44mm (1.73") | 561, 562, 569, 579 | Trunk / cargo (large vehicles) |
Specifications
| Sizes available | 28mm, 31mm, 36mm, 39mm, 42mm, 44mm |
| LED chips | 3030 SMD × 3 per bulb |
| Color temperature | 6000K cool white (9 colors available) |
| Voltage | 12V DC |
| CANBUS | Error-free, no flicker |
| Pack size | 2 bulbs per pack |
| Warranty | 30-day money back |
How to install (60 seconds)
- Remove the lens cover. Pry gently with a fingernail, credit card edge, or trim tool. Most interior lenses snap off easily.
- Pull out the old festoon. Slide one end-cap out of the spring contact, then lift the bulb free. No twisting needed.
- Insert the matching Driveon LED. Push both end-caps between the spring contacts. LEDs are polarity-sensitive — if it doesn't light up, flip the bulb 180° and re-insert.
- Test and replace the cover. Verify the LED lights up, then snap the lens cover back in. Total time: about 60 seconds per bulb.
Frequently Asked Questions
How do I measure my existing festoon bulb?
Remove the bulb (slide one end out from the spring contact, then pull it free). Measure end-cap to end-cap with a ruler. Compare to the size chart above — 28-29mm, 31mm, 36mm, 39mm, 41-42mm, or 44mm. If you're between two sizes, the smaller one is usually correct (festoon sockets have slight tolerance).
Are 28mm and 29mm the same?
Yes. Same physical bulb — Hella calls them 28mm (DE3021/DE3022), Sylvania calls them 29mm (6612F/6614F/6615F). Industry uses both names interchangeably for the same socket.
Are 41mm and 42mm the same?
Yes. Same physical bulb (211-2 / 578). Different parts catalogs round the length differently — the actual bulb measures ~41.4mm. The socket has spring contacts that accept either.
Can I use a 31mm bulb in a 36mm socket?
No. Festoon bulbs need to span between two spring contacts. A bulb that's too short will fall out or fail to make contact. Always match the size — if you're unsure, measure first.
Why are there so many sizes?
Festoon bulbs evolved over decades, with European and American manufacturers settling on different lengths for different housing sizes. The result: 6 common sizes from 28mm (small vanity) to 44mm (large trunk). Use our by-vehicle and by-position guides above to find yours quickly.
What's the difference between DE3175 and 6428?
Brand. Both are 31mm festoon bulbs — DE3175 is Hella, 6428 is Sylvania. Same socket, same bulb. Our Driveon 31mm LED replaces both.
My car doesn't appear in your fitment table. What now?
Pull out the existing bulb and measure end-cap to end-cap. Match to the size chart above. Or use our YMM finder at /pages/fitment — we may have your vehicle indexed even if it's not in this preview list. As a safety net, the multi-size kit on this page covers every common festoon socket.
Do I need different colors for different positions?
Most positions look best with white (6000K cool white) for an OEM-modern look or halogen-white (3000K warm) for a factory feel. Vanity and map lights are usually white. License plate areas legally require white in most US states.
See the full festoon collection or check our T10 LED bulbs for wedge-base interior sockets.
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