Cottonbell 578 LED bulbs with remote in a four-pack for dome light versatility.
Cottonbell RGB bulbs shown with remote control for easy color changes.
Cottonbell multicolor LEDs illuminate the dome light with vibrant color options.
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Cottonbell aluminum-body LED bulbs offering long life and low power use.
Cottonbell 578 LED bulbs with remote in a four-pack for dome light versatility.
Cottonbell RGB bulbs shown with remote control for easy color changes.
Cottonbell multicolor LEDs illuminate the dome light with vibrant color options.
Cottonbell license plate LED bulbs for bright, eye-catching plate illumination.
Cottonbell map light LEDs providing clear nighttime visibility for maps and reading.
Cottonbell interior courtesy lights featuring an aluminum body for cool operation.
Cottonbell aluminum-body LED bulbs offering long life and low power use.

Cottonbell 578 LED Festoon Bulbs RGB 16 Colors with Remote – 4-Pack (41mm/42mm)

Colorful interior lighting for your vehicle Transform your car cabin with Cottonbell 578 LED Festoon Bulbs. This...
Vendor: Cottonbell
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Cottonbell 578 LED bulbs with remote in a four-pack for dome light versatility.

Cottonbell 578 LED Festoon Bulbs RGB 16 Colors with Remote – 4-Pack (41mm/42mm)

£32.87
Cottonbell 578 LED bulbs with remote in a four-pack for dome light versatility.
Cottonbell RGB bulbs shown with remote control for easy color changes.
Cottonbell multicolor LEDs illuminate the dome light with vibrant color options.
Cottonbell license plate LED bulbs for bright, eye-catching plate illumination.
Cottonbell map light LEDs providing clear nighttime visibility for maps and reading.
Cottonbell interior courtesy lights featuring an aluminum body for cool operation.
Cottonbell aluminum-body LED bulbs offering long life and low power use.

Cottonbell 578 LED Festoon Bulbs RGB 16 Colors with Remote – 4-Pack (41mm/42mm)

£32.87
Description
Description
x

Colorful interior lighting for your vehicle

Transform your car cabin with Cottonbell 578 LED Festoon Bulbs. This four-bulb RGB set offers 16 colors and remote-controlled adjustments, letting you tailor the ambiance to the moment—subtle white light for practicality or bold hues for mood and style.

Built for everyday use, these bulbs are designed for easy installation and reliable performance. Each bulb is a compact 42 mm length and runs on 12V DC with a modest 2.2W draw per bulb. An aluminum body helps dissipate heat, keeping temperatures comfortable and supporting longer life in typical driving conditions.

Easy color control and dynamic effects

  • 16 RGB colors plus four dynamic effects: flash, strobe, fade, and smooth transitions.
  • Brightness adjustable and color changes accessible with the included remote control.
  • Remote control enables quick, fuss-free setup from the driver’s seat or passenger side.

Compatibility and fit

  • 12V DC operation with universal fit for many vehicle interiors.
  • Ideal for interior lights, dome lights, map lights, LED reading lamps, dash lights, side door courtesy lights, glove box lights, trunk/cargo lights, and instrument lamp doors.
  • 14–42mm range considerations are common across many cars, with 41mm/42mm fittings referenced for compatibility.

Durability and warranty

  • Aluminum body design promotes heat dissipation and cooler operation.
  • High-power 5050 LED chipset delivers bright, even illumination with low power use.
  • Long life up to 10,000 hours and a one-year warranty with responsive support.

Whether you’re aiming for a calm ambient glow during daily drives or a vibrant lighting accent for weekend cruising, Cottonbell’s 578 RGB kits offer flexible options without requiring permanent changes to your vehicle.

FAQ

Q: What is included in the Cottonbell 578 LED Festoon kit?

A: Four RGB festoon bulbs and one remote control are included.

Q: Are these bulbs compatible with my car’s lights?

A: They fit 12V vehicles and suit many interior lights; check 41mm/42mm sizing for compatibility.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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