AUXITO 3157 Switchback LED Bulbs Pack of 2 — Dual-Color Amber/White, CANBUS Compatible, High-Output 4000 lm

These AUXITO 3157/3057/3457-compatible switchback bulbs combine high-output LED chips with an intelligent driver and active cooling to replace incandescent turn signal and parking lamps. They provide a clear amber signal when indicating and a white light for daytime running or parking, built to reduce replacement frequency and work with most vehicle electrical systems.

How bright are these switchback LEDs compared to stock bulbs?

The AUXITO switchback bulbs use high-brightness LED chips to produce a noticeably stronger signal than factory halogens. With about 4000 lumens output per pair, they are designed to increase visibility for other road users in daylight and inclement weather.

• Approximately 4000 lm total output per pair for clear signaling.
• Designed to be up to 600% brighter than comparable halogen bulbs.
• Dual-color functionality keeps a distinct amber for signaling and bright white for DRL/parking.

Will these bulbs cause CANBUS errors or dashboard warnings?

Most vehicles will accept the AUXITO bulbs without error thanks to the built-in intelligent IC driver and higher wattage design. The product is engineered to be compatible with roughly 98% of vehicle electrical systems, but a small number of cars with strict monitoring may need an inline load resistor.

• Integrated CANBUS-friendly driver reduces false error codes and flicker.
• If a vehicle shows errors or the switchback function fails, adding a load resistor usually resolves it.
• AUXITO provides support for troubleshooting installation and compatibility issues.

How is heat managed and how long will these bulbs last?

AUXITO uses an aviation-grade aluminum housing and an active cooling fan to move heat away from sensitive components. This thermal management, combined with quality components, targets a long service life so you replace bulbs far less often than incandescent types.

• Aviation aluminum body for efficient heat dissipation.
• 12,000 RPM turbo cooling fan reduces operating temperature.
• Estimated lifespan around 50,000 hours under normal conditions.

How do these bulbs fit and what functions do they replace?

The bulbs are made to replace common wedge-base sockets used for turn signals and parking/DRL in many vehicles. They fit several socket types and switch between amber for turn signal and white for parking lights automatically as your vehicle’s circuits dictate.

• Compatible sizes: 3157, 3157A, 3057, 3057A, 3457, 3457A, 4057, 4157, 4157NA.
• Amber output serves as the turn signal; white output works as DRL/parking light.
• Plug-and-play installation for most cars; may require minimal adjustments on some systems.

Who is this for: Drivers who want a sharper, more modern appearance for turn signals and parking lights while improving daytime visibility. These bulbs suit owners replacing faded incandescent lamps, enthusiasts upgrading exterior lighting, and anyone seeking a long-life, high-output switchback solution that works with most modern vehicle CANBUS systems. For vehicles with unusual electrical monitoring, AUXITO offers support and guidance on adding resistors or other fixes.