Auxbeam B21 amber LED bulb front view showing bright turn signal output.
Auxbeam B21 amber LED bulb side view highlighting 360° illumination.
Auxbeam B21 with built-in CANBUS resistor for error-free operation.
Auxbeam B21 cooling system close-up with heat sink and copper ring.
Auxbeam B21 dual brightness mode for parking light and turn signal.
Auxbeam B21 IP68 waterproof and dustproof exterior shell.
Auxbeam B21 socket-compatibility base showing broad compatibility.
Auxbeam B21 amber LED bulb front view showing bright turn signal output.
Auxbeam B21 amber LED bulb side view highlighting 360° illumination.
Auxbeam B21 with built-in CANBUS resistor for error-free operation.
Auxbeam B21 cooling system close-up with heat sink and copper ring.
Auxbeam B21 dual brightness mode for parking light and turn signal.
Auxbeam B21 IP68 waterproof and dustproof exterior shell.
Auxbeam B21 socket-compatibility base showing broad compatibility.

Auxbeam B21 Series 1157 Amber LED Bulbs – CANBUS, 600% Bright Turn Signals

Upgrade your vehicle with the Auxbeam B21 Series 1157 amber LED bulbs. These bulbs are designed for...
Vendor: Auxbeam
Availability: In stock
£56.37
£56.37
Please hurry! Only 5 left in stock
Subtotal: £56.37
10 customers are viewing this product

Free UK Delivery on All Orders

No Minimum Spend Fast & Reliable Delivery Ships Across the UK

Free Returns

30-Day Free Returns
Auxbeam B21 amber LED bulb front view showing bright turn signal output.

Auxbeam B21 Series 1157 Amber LED Bulbs – CANBUS, 600% Bright Turn Signals

£56.37
Auxbeam B21 amber LED bulb front view showing bright turn signal output.
Auxbeam B21 amber LED bulb side view highlighting 360° illumination.
Auxbeam B21 with built-in CANBUS resistor for error-free operation.
Auxbeam B21 cooling system close-up with heat sink and copper ring.
Auxbeam B21 dual brightness mode for parking light and turn signal.
Auxbeam B21 IP68 waterproof and dustproof exterior shell.
Auxbeam B21 socket-compatibility base showing broad compatibility.

Auxbeam B21 Series 1157 Amber LED Bulbs – CANBUS, 600% Bright Turn Signals

£56.37
Description
Description
x

Upgrade your vehicle with the Auxbeam B21 Series 1157 amber LED bulbs. These bulbs are designed for broad compatibility and feature a built-in CANBUS system to reduce decoding issues, minimizing hyper flash and warning alerts on most cars. A 1-year warranty backs the product for added peace of mind.

What makes them stand out

  • CANBUS compatibility across 99% of vehicles, often eliminating the need for external resistors.
  • 600% brightness achieved with 36 upgraded 3030 SMD chips per bulb, delivering a crisp 3500K amber glow and instant-on lighting.
  • 360° illumination with no dark spots, improving visibility from every angle when signaling or parking.
  • Dual brightness modes: dim parking light/DRL and bright turn signal, with amber-off-amber-on sequencing for clear signaling from distance.
  • Robust cooling and weather resistance: IP68 rating, 12,000 RPM silent fan, copper ring, multiple heat sinks, and aviation aluminum body for longer life.

Daily use and installation

  • Plug-and-play fit for common sockets such as 1016, 1034, 1157, 2057, 2357, and more; no polarity concerns.
  • Instant activation with no warm-up time, providing a quick, confident signal on the road.
  • Durable construction designed to withstand wet and dusty conditions for everyday driving.

Notes

For some very sensitive models or certain pickup/truck configurations, extra resistors may be required. Please message us for guidance or solutions.

FAQ

Q: Is the Auxbeam B21 bulb CANBUS ready for most vehicles?

A: Yes, the built-in CANBUS helps reduce decoding errors on many cars.

Q: Do these bulbs fit common 1157 sockets and offer dual brightness?

A: They fit many 1157-based sockets and switch between dim DRL/parking and bright turn signal modes.

Shipping & Return
Shipping & Return
x

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.

Complete Your Setup

Example product title
£56.37
£56.37
Example product title
£56.37
£56.37
Example product title
£56.37
£56.37
Example product title
£56.37
£56.37
Example product title
£56.37
£56.37
Example product title
£56.37
£56.37
Example product title
£56.37
£56.37
Example product title
£56.37
£56.37
Example product title
£56.37
£56.37
Example product title
£56.37
£56.37

Recently Viewed Products