Festoon LED Series
Factory-direct C5W festoon LED bulbs (36/39/42mm) for interior dome, license plate and map lights. 6V, 12V and 24V options.
Festoon LED Bulbs: C5W / C10W / SV7 / T6 Interior, License Plate & Cabin Light Replacements
Festoon bulbs — the cylindrical lamps with a metal cap at each end — light vehicle interiors, license plates, trunks, and boat cabins. They come in several diameters and lengths: C5W and C10W (SV8.5 caps, ~36–39mm), SV7 (7mm), and T6 (6mm fuse type). MIDCARS manufactures the full festoon family in-house, with 360°, dual-face, and single-sided PC-tube versions for 12V and 24V systems.
Choosing by Cap Type and Length
| Type | Diameter | Typical length | Common use |
|---|---|---|---|
| C5W / C10W (SV8.5) | 8.5mm | 36–39mm | Dome, license plate, marine cabin |
| SV7 | 7mm | 28–42mm | Dome and interior light |
| T6 (fuse type) | 6mm | 28–36mm | Interior and map light |
The critical dimension is length: measure the old bulb end-to-end and match it, because fixtures are sized to a specific festoon length.
How to Choose the Right Festoon LED Bulb
- Measure the length. Festoon fixtures are length-specific — confirm the end-to-end measurement before ordering.
- Match the cap type. Conical (pointed) or cylindrical (flat) end caps must match your fixture's contacts.
- Choose the beam. 360° versions light the whole fixture; single-sided PC-tube versions project forward for focused output.
- Voltage. Standard 12V and 24V versions for cars and boats.
- Color temperature. 6500K white, 3000K warm white, or amber.
Common Applications
- Interior dome and reading lights
- License plate lights
- Trunk and cargo lights
- Boat and marine cabin lights
Why Source Festoon LED Bulbs from MIDCARS
- Factory-direct manufacturing in Dongguan, China — competitive wholesale pricing and full quality control.
- Certified compliance — CE-LVD, CE-EMC, and RoHS certificates.
- Full length and cap coverage — C5W / C10W / SV7 / T6.
- Flexible ordering — standard stock from 5 pairs; custom packaging at a 5,000-piece MOQ drawn down across repeat orders.
How do I measure a festoon bulb?
Measure the bulb end-to-end from the tip of one metal cap to the tip of the other. Match this length and the cap shape (conical vs cylindrical) to your fixture — both dimensions matter.
What is the difference between C5W and C10W?
Both use SV8.5 caps, but the C10W is brighter — the number refers to the halogen wattage it replaces (5W vs 10W). Choose C10W for higher output where visibility matters.
Can festoon bulbs be used on boats?
Yes. We supply festoon bulbs for marine cabin and dome lighting in 12V and 24V versions, built to withstand the humidity and vibration of marine environments.
What is your minimum order quantity?
Standard stock starts from 5 pairs for testing. For custom packaging, the packaging run has a 5,000-piece MOQ, pre-funded and drawn down across repeat orders. Contact sales02@zhishanled.com for a quotation.
