Vouke 3157 Switchback LED Bulbs Pair — White to Amber, 22 SMD 5730, Plug-and-Play Dual-Function

These Vouke 3157 switchback LED bulbs are a plug-and-play pair that deliver bright white for parking/DRL and vivid amber for front turn signals using 22 high-power 5730 SMD chips per bulb.

Replace factory dual-filament front bulbs with a modern, energy-efficient LED that switches between pure white and golden amber without rewiring. Each bulb contains 11 white and 11 amber 5730 SMDs arranged to provide strong daytime running/parking illumination and highly visible turn signaling. They come as a standard-base 3157-style pair and are designed for vehicles that use a single dual-function socket (not CK-type).

How bright are these LEDs compared with stock incandescent bulbs?

These bulbs use high-power 5730 SMD diodes that produce noticeably greater lumen output and crisper light than typical OEM filaments. The white chips give a clean DRL/parking appearance, while the amber chips emit a clear golden flash for signaling.

• 22 total SMDs per bulb (11 white + 11 amber)
• 5730 high-power chipset for stronger, whiter light
• Faster on/off response than incandescent bulbs
• Vibration-resistant construction for longer-lasting brightness

Will these fit my vehicle’s socket and wiring?

The bulbs are built with a standard 3157-style base and cross-reference common equivalents (3057, 3357, 4157, etc.). They are intended for dual-function bulbs that combine parking/DRL and front turn signal in the same socket. They are not compatible with CK-type bases.

• Standard 3157 base — fits many dual-function sockets
• Cross-references: 3047, 3057, 3357, 3457, 4057, 4114, 4157, 3057A, 3157A
• Not suitable for CK-type sockets — verify before ordering
• Plug-and-play installation for most vehicles

Do I need extra parts or modifications to prevent hyper-flashing?

Because LEDs draw far less current than incandescent bulbs, some vehicles may register the lower load as a burned-out bulb and hyper-flash. Many cars work fine without changes, but quick, fast flashing indicates the relay needs load balancing.

• May require adding a 50W 6-ohm load resistor per circuit to stop hyper-flash
• Alternatively replace the flasher relay with an LED-compatible unit if available
• Check vehicle behavior after installation to determine if resistors are needed

How reliable are these bulbs and what is their expected lifespan?

Vouke uses high-quality 5730 SMD chips and robust assembly to deliver longevity far beyond incandescent bulbs. The rated lifespan exceeds tens of thousands of hours, and the LEDs are resistant to vibration and rapid switching.

• Estimated life span: 50,000+ hours under normal conditions
• Durable against vibration and frequent on/off cycles
• Energy-efficient operation reduces alternator load and heat

Who is this for: These switchback bulbs are ideal for owners who want a brighter, cleaner-looking parking/DRL light with an instantly recognizable amber turn signal, without major modifications. They suit vehicles that use dual-function 3157-style sockets and drivers comfortable confirming socket type and, if necessary, adding load resistors or an LED-compatible flasher to correct hyper-flashing. Each package contains two plug-and-play 3157 switchback LED bulbs; confirm your socket type (standard 3157, not CK) before purchase.