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  5. [4th Gen] Built-in Resistors CANBUS LED Switchback Light Bulbs for Front Turn Signal Lights
CANBUS Load Resistor
By SYNETICUSA

[4th Gen] Built-in Resistors CANBUS LED Switchback Light Bulbs for Front Turn Signal Lights

$35.99
$39.99 $35.99
-$4.00
Shipping calculated at checkout.
SKU: LR-33WA-3157-V4
SYNETICUSA[3rd Gen] Built-in Resistor CANBUS LED Light Bulbs for Turn Signal / Brake / Parking Light
Two high power LED light bulbs with built-in-resistor, wire leads, and connectors for vehicle lighting, branded Syneticusa.
LED switchback light bulbs
SYNETICUSA[3rd Gen] Built-in Resistor CANBUS LED Switchback Light Bulbs for Front Turn Signal Light
Two LED bulbs with a white and amber light and an electronic control unit, against a white background.
$35.99
$39.99 $35.99
  • SYNETICUSA heat sink with text about fast heat dissipation on a dark background

    Heat Dissipation

    Extra aluminum heat sink allow quicker transfer heat away from burning the LED chips

  • High-tech decoding IC chip with circuit board background

    Eliminate hyperflash

    Cancel dashboard warning message with built-in constant current IC for longer life span

  • Car LED bulb with decoder on a blue gradient background, featuring the brand 'HEPCUSA'.

    Chip Type

    Ten times brighter than regular bulbs with 3535 chip type, provide 120 degree wide angle projection

Product Description

Built-in Resistors CANBUS LED Switchback Light Bulbs are designed for front turn signal applications, delivering bright White/Amber switchback lighting with a simple plug-and-play installation. The built-in resistors help reduce hyper flashing and common CANBUS warning messages on many compatible vehicles for a cleaner installation experience.

Each bulb features 33 high-performance 3535 LED chips that produce bright, consistent illumination while maintaining low power consumption. The switchback function displays crisp white light during normal operation and automatically changes to bright amber when the turn signal is activated, improving visibility while giving your vehicle a clean, modern appearance.

Built with an aluminum housing and a built-in constant current IC, these bulbs provide stable performance and efficient heat dissipation for everyday driving. Compatible with 3157 and 7443 sockets, they are direct replacements for compatible factory front turn signal bulbs.
 

Features

● Built-in resistors help reduce hyper flashing and common CANBUS warning messages on many compatible vehicles
● Plug-and-play installation
● Direct replacement for compatible factory bulbs
● 33 high-performance 3535 LED chips per bulb
● White / Amber switchback lighting
● Aluminum housing for efficient heat dissipation
● Built-in constant current IC for stable performance
● Compatible with 3157 and 7443 sockets
● Package Includes: 2 High-Power LED Bulbs
● 1-Year Manufacturer Warranty
 

Advantages

● Provides brighter illumination than factory halogen bulbs
● Improves visibility for safer signaling
● Modern White/Amber switchback appearance
● Stable lighting performance with low power consumption
● Helps reduce the need for external load resistors on many compatible vehicles
● Durable aluminum housing for dependable daily use
● OEM-style fit with quick plug-and-play installation

 

View how Type 1 switchback works.

View how Type 2 switchback works.