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Installation Guides & Articles

Switchback LED 101

Switchback LED 101

Switchback LED lights are dual-function LED bulbs or LED strips that stay lit as xenon white in parking/position light mode and flash amber when the turn signals are used. iJDMTOY is the very first company to invent this two-color LED products and now carries this kind of switchback LED in many different sizes such as 1157, 3157, 7443 and even carries a retrofit type of single filament 7440 as well as switchback LED strips and daytime running lamps.

Kia Optima Switchback LED Showcase

Kia Optima Switchback LED Showcase

This 2011 Kia Optima installed our all new 27-SMD-5050 1157 switchback LED bulbs for the front corner lights. When the headlight is on, the switchback LED turns on a nice 6000K HID matching xenon white color and when the turn signal is on, the LED bulbs switch to a rich golden amber color to make sure you stay 100% street legal...

How to Install Switchback LED on Scion FR-S

How to Install Switchback LED on Scion FR-S

Thanks to Mario for providing us the pictures for the 7443 switchback LED bulbs installation guide based on his 2013 Scion FR-S. The installation is very easy, simply replace the stock 7443 bulbs with switchback LEDs and add resistors to prevent hyper flash...

How the Switchback LED Functions Video Demo

How the Switchback LED Functions Video Demo

This YouTube video will help you get a better understanding on how the switchback LED bulb functions. During the daytime, when the parking light is off, the switchback LED bulb blinks amber-off-amber-off. At night when the parking light is on, the switchback LED bulb lights up xenon white and blinks amber-off-amber-off. When the turn signal is off, it goes back to white.

How to Install Switchback LED Bulbs Into Stock Socket

How to Install Switchback LED Bulbs Into Stock Socket

Since the 3156/3157 or 7440/7443 LED bulb's base is made with PVC plastic, it is normal to have a 3-5% tolerance error. We made this DIY guide to show you how to properly and correctly install these LED bulb into the stock socket…

Why You Need Load Resistors Video Demo

Why You Need Load Resistors Video Demo

Why do you need load resistors? Resistors prevent the LED turn signal bulbs from hyper flashing. Here is a video comparing the same LED turn signal light bulb without the load resistor. It blinks faster than normal. After you tap it with the load resistor, the LED bulbs will blink at the normal speed (about 0.8-1.0 second per blink)

One Way to Prevent Hyperflash

One Way to Prevent Hyperflash

Besides adding load resistors, you can also prevent hyper flash on some newer Toyota, Lexus and Scion vehicles such as Toyota Tundra, Lexus IS, GS, RX and Scion FRS, tC or IQ using the 81980-50030 8-Pin LED Flasher Module Box. Here we will show you step by step how to locate it and replace it with the LED flasher...

Dodge Challenger Switchback LED Turn Signals

Dodge Challenger Switchback LED Turn Signal Lights

Dodge Challengers are known to be fierce, All-American muscle cars with sheer brute force and these Switchback LED bulbs really show how badass the car really is. You can say that this set of Switchback LED lights is simply the cherry on top of the entire thing because it really brings the whole car together...


When you customize your vehicle, the whole point is that it is completely unique to you, and you never have to worry about someone having the exact same vehicle. It gives your car a whole new look and style and gives you plenty of conversation topics while out and about. iJDMTOY realizes how important having a unique vehicle is, and invented the dual color switchback LED bulbs. What makes these so unique? They stay lit in white in parking/position mode, and flash amber when the turn signal is used, giving you a unique vehicle.

Now, using our dual color switchback LED bulbs doesn’t really change much, your blinkers will still work the same, but they will look so cool and different from anything else on the road. Our lights work for a variety of vehicles, so you can get this customization if you own a Toyota, a Nissan, and even Ford. We designed these with you in mind and giving you the unique look your car needs. In addition to offering options for a variety of makes and models, we also offer a variety of types, that way you can find the best fit for your vehicle. Choose from strips, DRL, 7440, 7440/7443, 3157/3156, and 1157/7528. This way, you get exactly what your vehicle needs. In addition, we also offer conversion kits to help easily convert your vehicle. In addition to offering as simple of an installation as possible, we also have handy guides to help you with the process. An additional piece that you should include is a load resistor, and we explain above why you need one, and show you the difference it makes with one versus without.

Here at iJDMTOY, we know what it means to love your vehicle and provide only the best products for it. All of our dual color switchback LED bulbs were created with the highest quality, same as our other products, and are great priced options for customizing your vehicle. If you have any questions about the best part to choose for your car, please contact our customer service representatives. They will be happy to help you complete your order.