KATUR 1157 BAY15D Red LED Brake Bulbs, 2-Pack

Pack: KATUR 1157 BAY15D LED bulbs are a red replacement option for compatible brake and tail-light sockets. The listing claims separate high- and low-mode output, a cooling fan and CANBUS decoding, but says some newer vehicles may still need load resistors.

At a glance

Red LED replacement listed for BAY15D, P21/5W and several related bulb codes.
Listing specifies different high- and low-mode power and lumen figures.
Built-in fan and CANBUS decoding are claimed, though some vehicles may still require additional load resistors.

Price

£21.21Save 15%

Reference price: ~~£24.99~~

Price checked: 14 Nov 2026

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Often bought together

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Pros and cons

Pros

Two bulbs are claimed in the product title and feature text, suitable for replacing a pair when both sockets match.
Separate high- and low-mode output figures are provided for stop and tail-light use.
The listed DC 9-32V input covers a broad voltage range, subject to vehicle and socket compatibility.

Technical specifications

12 specifications

Identity
Brand	KATUR
Model	1157 BAY15D P21/5W 1157A 1157NA

Light and electrical claims
Colour	Brilliant Red
Input voltage	DC 9-32V
High-mode power	H:30W/pcs
Low-mode power	L:8W/pcs
High-mode luminous output	H:3000LM/pcs
Low-mode luminous output	L:850LM/pcs
Illumination angle	360°

Cooling and durability claims
Cooling fan speed	16000RPM
Operating life	60000 Hours
Waterproof rating	IP65

What to know before buying

The listing's claimed CANBUS compatibility does not guarantee error-free operation. It says some newer vehicles may need additional load resistors if flashing or error messages occur. Confirm the existing bulb code and socket fit before ordering.

Who is it for?

A good fit for

Drivers replacing compatible red BAY15D or P21/5W brake and tail bulbs.
Buyers wanting a paired replacement with distinct high- and low-mode output claims.

Less suited to

Vehicles that require a different socket or bulb type.
Buyers who need guaranteed CANBUS error-free operation without checking vehicle-specific behaviour.

KATUR 1157 BAY15D Red LED Brake Bulbs, 2-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4 / 5 · 6 ratings

5 stars76%76%
4 stars0%0%
3 stars0%0%
2 stars0%0%
1 star24%24%

The supplied evidence contains aggregate ratings only, with a small rating sample and both five-star and one-star ratings represented. That makes the overall reception difficult to interpret and provides no evidence about fit, brightness or CANBUS behaviour in particular vehicles.

Frequently asked questions

Will these fit my vehicle?

The listing names BAY15D, P21/5W, 1157A and several related bulb codes. Check your vehicle manual or the existing bulb code and socket before buying.

Are they guaranteed to work without a load resistor?

No. Although CANBUS compatibility is claimed, the listing says some newer cars may need additional load resistors to prevent flashing or error messages.

What are the high- and low-mode output claims?

The listing gives 3000LM/pcs and 30W per bulb for high mode, and 850LM/pcs and 8W per bulb for low mode.