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C10W Festoon LED Bulb - 360° SV8.5 Dome License Plate & Boat Cabin Light 12V 24V
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Four C10W SV8.5 360-degree festoon LED bulbs diagonal group arrangement
C10W 360-degree festoon LED bulb close-up showing 10mm clear PC tube and SMD 3014 array
Pair of C10W SV8.5 pointed metal end cap festoon LED bulbs angled perspective
C10W SV8.5 festoon LED bulb horizontal profile with omnidirectional LED array
C10W 10mm festoon LED bulb upright studio view for 6V 12V 24V marine and auto fixtures
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Cross Reference / Direct Replacement
31mm: 6438 / DE3175 / DE3021 / DE3022 / 3175
36mm: 6418 / 6411 / 6413 / 6461 / 6423 / DE3423
39mm: 6411 / 6423 / 6418 / DE3425 (38mm-39mm)
42mm: 578 / 211-2 / 212-2 / 214-2 / 6451 (41mm-42mm)
Standard C10W & C5W SV8.5-8 Bases

C10W Festoon LED Bulb - 360° SV8.5 Dome License Plate & Boat Cabin Light 12V 24V

The MIDCARS C10W-24L is an engineered 10mm C10W SV8.5 festoon LED bulb featuring a 360° cross-type optical array with 16-24x SMD 3014 LEDs in a shatterproof PC tube. Delivering 110 lumens across 6V, 12V, and 24V circuits (lengths 31, 36, 39, and 42mm), it provides direct replacement for automotive dome, license plate, and marine yacht lighting.
Product Model: C10W-24L
Socket / Base: Festoon SV8.5 (Standard 8.5mm Pointed Metal End Caps, 10mm Tube)
Length Options: 31mm · 36mm · 39mm · 42mm (Precision Fit for Automotive & Marine)
Operating Voltage: 6V / 12V / 24V DC (Classic 6V, Passenger 12V & Heavy-Duty 24V Fleet)
Power Consumption: 1.2W High-Efficiency 360-Degree Output (Upgraded C10W Replacement)
Luminous Output: 110 Lumens (Full Radial Cylindrical Beam)
Emitting Color: 6500K Xenon White · 3000K Warm White · 4500K Natural White (Custom Colors)
Optical Construction: 16–24x High-Efficiency SMD 3014 LEDs (Ra ≥ 80, 16x for 31mm up to 24x for 42mm · 360° Cross-Type Array)
Enclosure / Body: High-Transmittance Shatterproof Clear PC Tube (Non-Glass Vibration Resistant)
Factory MOQ: Standard: from 5 pairs | Custom Packaging: 5,000 pcs (pre-funded)
Quality & Warranty: CE (EMC Compliant), RoHS · 2 Years Factory Warranty
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  • Product Details

Overview: High-Output 360-Degree C10W SV8.5 Festoon LED Replacement

The MIDCARS C10W-24L is a high-output 10mm-diameter festoon LED bulb engineered with an innovative 3D cross-type circuit architecture. By positioning 16 to 24 precision-binned SMD 3014 LEDs across four perpendicular faces inside a shatterproof optical PC tube, it produces an authentic 360-degree cylindrical light pattern that fully energizes vehicle and marine lamp reflectors without dead spots.

Equipped with an advanced multi-voltage constant-current driver circuit, the C10W-24L delivers uniform 110-lumen output across 6V classic vehicle systems, 12V passenger cars, and 24V commercial truck or marine battery banks, serving as a reliable upgrade for standard 10W C10W halogen lamps.

Precision Blueprint & Multi-Angle Technical Gallery

Review exact physical dimensions and the 360-degree optical cross-architecture below. Click any image to open the high-resolution lightbox view:

C10W SV8.5 360 festoon LED bulb precision blueprint showing 31mm 36mm 39mm and 42mm length options
Dimensional Blueprint
(10mm Tube · 31 / 36 / 39 / 42 mm Length Options)
C10W festoon LED bulb cross-type 360-degree lighting design demonstration
360° Cross-Type Optical Architecture
(Full Cylindrical Beam · Maximizes Housing Reflector Output)

Key Engineering & Operational Features

  • 360-Degree Cross-Type Optical Architecture: 16 to 24 pieces of SMD 3014 LEDs are positioned in a 3D cross configuration, dispersing luminous output in all directions to fully engage the vehicle's interior dome or license plate chrome reflectors.
  • Multi-Voltage Constant-Current Driver (6V / 12V / 24V): Delivers steady illumination across classic 6V automotive electrical systems, standard 12V passenger cars, and 24V commercial trucks and marine yacht batteries.
  • Impact-Resistant Optical Polycarbonate Tube: Shields internal circuitry from humidity, dust, and mechanical vibration, providing robust durability in marine and off-road applications.
  • Upgraded 1.2W C10W Direct Replacement: Replaces standard 10W C10W incandescent festoons with 110 lumens of crisp, energy-efficient illumination while reducing electrical load by over 85%.

Application Scenarios: Automotive, Marine & Commercial Transport

The 360-degree omnidirectional output of the C10W-24L makes it particularly suited for fixtures utilizing reflective bowls:

  • Automotive Reflector Dome & Reading Lights: Maximizes lux on cabin surfaces by utilizing factory chrome reflector housings in passenger cars and pickups.
  • Marine Yachts & Cabin Courtesy: Provides 360-degree ambient illumination for staterooms, berths, and companionways on 12V/24V marine vessels.
  • Commercial Truck & Hauler Interiors: Durable 24V operation for heavy transport sleeper cabs, utility boxes, and cargo bays.
  • Classic & Vintage Vehicle Restorations: Compatible with 6V electrical systems found in European classic automobiles and vintage motorcycles.

Frequently Asked Questions

What is the advantage of the 360-degree cross-type design compared to single-sided LED festoons?
The 360-degree cross-type array emits light evenly in all directions, allowing the vehicle or marine lamp housing's concave parabolic reflector to maximize housing reflector utilization and deliver 110 lumens of uniform illumination, eliminating dark shadows and providing a fuller, more authentic incandescent-like appearance.
How does the C10W-24L replace standard C10W and C5W halogen bulbs?
With an optimized 1.2W power draw delivering 110 lumens, this bulb serves as a high-brightness direct replacement for standard 10W C10W halogen festoons (and an upgraded output replacement for 5W C5W bulbs) without causing dashboard bulb-out warnings in most interior circuits.
Can this bulb operate on 6V vintage vehicles or 24V commercial marine systems?
Yes. The onboard driver supports 6V (for vintage and classic vehicles), 12V (standard passenger cars), and 24V (commercial haulers, buses, and marine yachts) with stable constant-current regulation and thermal protection.
What is the sample MOQ and custom packaging procedure?
Samples are available from 5 pairs for evaluation. Custom retail packaging (5,000 pcs MOQ) can be pre-funded and held in inventory to be drawn down across repeat orders. Please refer to the Factory MOQ specifications above for full terms.