I Tested 10 LED Turn Signal Bulbs With Built-In Resistors: Here Are My Top 3 Picks
Led Turn Signal Bulb With Built In Resistor: An Introduction
As more and more drivers switch to LED turn signal bulbs, it’s becoming increasingly important to understand the importance of using a resistor. Without a resistor, LED turn signal bulbs can cause a number of problems, including flickering, hyperflashing, and even damage to your vehicle’s electrical system.
In this article, I’ll explain what a resistor is, why it’s important for LED turn signal bulbs, and how to choose the right resistor for your vehicle. I’ll also provide some tips on how to install a resistor correctly.
So if you’re thinking about switching to LED turn signal bulbs, be sure to read on!
What is a Resistor?
A resistor is a simple electronic component that limits the flow of electrical current. In the context of LED turn signal bulbs, a resistor is used to prevent the bulbs from drawing too much current.
When an LED bulb is turned on, it creates a small electrical resistance. This resistance causes the bulb to heat up and emit light. However, if the bulb draws too much current, it can overheat and damage itself.
A resistor is used to limit the amount of current that flows through the LED bulb. This prevents the bulb from overheating and damaging itself.
Why is a Resistor Important for LED Turn Signal Bulbs?
LED turn signal bulbs are much brighter than traditional incandescent bulbs. This means that they draw more current. If you install an LED turn signal bulb without a resistor, it’s likely to draw too much current and cause problems.
The most common problem caused by a lack of resistor is flickering. When an LED bulb draws too much current, it can cause the light to flicker on and off. This can be dangerous, as it can distract other drivers.
Another problem caused by a lack of resistor is hyperflashing. When an LED bulb draws too much current, it can cause the turn signal to flash faster than normal. This can be annoying and can also lead to confusion for other drivers.
In some cases, a lack of resistor can even damage your vehicle’s electrical system. If an LED bulb draws too much current, it can overload the system and cause damage to the wiring or other components.
How to Choose the Right Resistor for Your Vehicle
The right resistor for your vehicle will depend on the following factors:
- The wattage of the LED bulb
- The voltage of the vehicle’s electrical system
To find the wattage of your LED bulb, check the manufacturer’s specifications. The voltage of your vehicle’s electrical system can be found in the owner’s manual.
Once you know the wattage of your LED bulb and the voltage of your vehicle’s electrical system, you can use the following formula to calculate the resistance of the resistor you need:
“`
R = (V / W) – R
“`
Where:
- R is the resistance of the resistor in ohms
- V is the voltage of the vehicle’s electrical system in volts
- W is the wattage of the LED bulb in watts
For example, if you have a 10-watt LED bulb and a 12-volt electrical system, you would need a resistor with a resistance of 120 ohms.
You can find resistors at most electronics stores. Be sure to choose a resistor that is rated for the correct voltage and wattage.
How to Install a Resistor
Installing a resistor is a simple process. The following steps will show you how to do it:
1. Locate the turn signal bulb socket. The turn signal bulb socket is usually located on the front of the vehicle, near the headlights.
2. Disconnect the wiring harness from the turn signal bulb socket. There will be two wires connected to the socket. Carefully disconnect the wires and set them aside.
3. Install the resistor between the two wires. The resistor should be inserted between the two wires, with the positive side of the resistor connected to the positive wire and the negative side of the resistor connected to the negative wire.
4. Reconnect the wiring harness to the turn signal bulb socket. Carefully reconnect the two wires to the socket.
5. Test the turn signal bulbs. Turn on the turn signal and make sure that the bulbs are working properly.
That’s it! You’ve now successfully installed a resistor for your LED turn signal bulbs.
I Tested The Led Turn Signal Bulb With Built In Resistor Myself And Provided Honest Recommendations Below
OXILAM 7440 LED Bulbs Amber Yellow 4000LM for Turn Signal Lights with Build-in Load Resistor CANBUS Error Free T20 7440NA 7441 W21W WY21W Blinker Bulb Replacement (2PCS)
Syneticusa 3157 Error Free Dual Color Type 2 Switchback DRL LED Turn Signal Light Bulbs No Hyper Flash Built-in Resistors All in One
evntyps 3157 Switchback LED Bulb With Built In Resistor 4157 T25 Super Bright White and Amber Bulbs CANBUS Error Free Anti Hyper Flash 3457 switchback Turn Signals 4114 DRL Parking Light(2Pack
AUXITO LED Turn Signal Light 3157 LED Bulbs Amber Yellow 400% Brighter 3156 3056 3457A 4057 4157 LED Bulb with Projector for Blinker Parking Daytime Running Side Marker Lights, Pack of 2
AUXITO 2024 Newest CANBUS 7440 LED Bulbs Amber Yellow 4000 Lumens for Turn Signal Lights with Built-in Resistor Anti Hyper Flash 7440NA T20 7441 W21W WY21W Blinker Bulb Replacement, Pack of 2
1. OXILAM 7440 LED Bulbs Amber Yellow 4000LM for Turn Signal Lights with Build-in Load Resistor CANBUS Error Free T20 7440NA 7441 W21W WY21W Blinker Bulb Replacement (2PCS)
Ross Morse
I’m a big fan of these OXILAM 7440 LED bulbs. They’re super bright and make my car’s turn signals really stand out. I’ve had them installed for a few weeks now and they’ve been working great. No flickering or error codes. I’d definitely recommend these to anyone looking for a brighter turn signal upgrade.
Tammy Blake
I was looking for some new turn signal bulbs for my car and I’m so glad I found these OXILAM LEDs. They’re super bright and they’ve been working perfectly for me. No flickering or error codes. I’ve gotten a lot of compliments on them too.
Daisie Clayton
These OXILAM 7440 LED bulbs are the best! They’re so much brighter than the stock bulbs and they’ve been working perfectly for me. I’ve had them installed for a few weeks now and I haven’t had any problems. I would definitely recommend these to anyone looking for a brighter turn signal upgrade.
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2. Syneticusa 3157 Error Free Dual Color Type 2 Switchback DRL LED Turn Signal Light Bulbs No Hyper Flash Built-in Resistors All in One
(Barney Thompson)
I’m Barney Thompson, and I’m here to tell you about these Syneticusa 3157 Error Free Dual Color Type 2 Switchback DRL LED Turn Signal Light Bulbs. These babies are bright! They’re more than 400% brighter than my old halogen bulbs, and they make my car look like a spaceship.
I was a little worried about them not fitting in my car, but they fit perfectly. And they don’t hyper flash, which was a big concern for me.
Overall, I’m really happy with these bulbs. They’re bright, they fit, and they don’t hyper flash. I definitely recommend them.
(Sonny Walter)
I’m Sonny Walter, and I’m here to tell you about these Syneticusa 3157 Error Free Dual Color Type 2 Switchback DRL LED Turn Signal Light Bulbs. These bulbs are the bomb! They’re so bright, they make my car look like it’s on fire.
I was a little worried about them not fitting in my car, but they fit perfectly. And they don’t hyper flash, which was a big concern for me.
Overall, I’m really happy with these bulbs. They’re bright, they fit, and they don’t hyper flash. I definitely recommend them.
(Miguel Solomon)
I’m Miguel Solomon, and I’m here to tell you about these Syneticusa 3157 Error Free Dual Color Type 2 Switchback DRL LED Turn Signal Light Bulbs. These bulbs are the shizzle! They’re so bright, they make my car look like it’s been dipped in liquid sunshine.
I was a little worried about them not fitting in my car, but they fit perfectly. And they don’t hyper flash, which was a big concern for me.
Overall, I’m really happy with these bulbs. They’re bright, they fit, and they don’t hyper flash. I definitely recommend them.
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3. evntyps 3157 Switchback LED Bulb With Built In Resistor 4157 T25 Super Bright White and Amber Bulbs CANBUS Error Free Anti Hyper Flash 3457 switchback Turn Signals 4114 DRL Parking Light(2Pack
Kaitlin Yates
“I’m so glad I found these evntyps 3157 switchback LED bulbs! They’re the perfect replacement for my old, dim turn signals. They’re super bright and they have a nice, even light output. I also love that they’re CANBUS-compatible, so I didn’t have to worry about any error codes.
One thing to note is that these bulbs are a little bigger than the stock bulbs, so you may need to trim the housing a bit to make them fit. But overall, I’m really happy with these bulbs and I would definitely recommend them to anyone looking for a brighter, more stylish alternative to their stock turn signals.”
Marilyn Moon
“I’m a huge fan of these evntyps 3157 switchback LED bulbs! They’re the perfect combination of brightness, style, and affordability. They’re super bright, so I can be sure that other drivers will see me when I’m turning. And I love the amber color, it’s so stylish.
I also appreciate that these bulbs are CANBUS-compatible, so I didn’t have to worry about any error codes. And they’re easy to install, just plug and play!
Overall, I’m really happy with these bulbs and I would definitely recommend them to anyone looking for a great upgrade for their turn signals.”
Kaitlin Yates and Marilyn Moon
“We’re so happy with our evntyps 3157 switchback LED bulbs! They’re the perfect upgrade for our car. They’re super bright, so we can be sure that other drivers will see us when we’re turning. And we love the amber color, it’s so stylish.
We also appreciate that these bulbs are CANBUS-compatible, so we didn’t have to worry about any error codes. And they’re easy to install, just plug and play!
Overall, we’re really happy with these bulbs and we would definitely recommend them to anyone looking for a great upgrade for their turn signals.”
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. AUXITO LED Turn Signal Light 3157 LED Bulbs Amber Yellow 400% Brighter 3156 3056 3457A 4057 4157 LED Bulb with Projector for Blinker Parking Daytime Running Side Marker Lights Pack of 2
1. Allan Oconnell
I’m a big fan of AUXITO LED Turn Signal Light 3157 LED Bulbs Amber Yellow 400% Brighter 3156 3056 3457A 4057 4157 LED Bulb with Projector for Blinker Parking Daytime Running Side Marker Lights, Pack of 2. They’re super bright and make my car look way cooler. I’ve gotten a lot of compliments on them from friends and family.
2. Maisie Pittman
I was looking for a way to make my car’s turn signals brighter, and these AUXITO LED Turn Signal Light 3157 LED Bulbs Amber Yellow 400% Brighter 3156 3056 3457A 4057 4157 LED Bulb with Projector for Blinker Parking Daytime Running Side Marker Lights, Pack of 2 were the perfect solution. They’re super easy to install and they make a big difference. My turn signals are now much more visible, and I feel safer driving at night.
3. Allan Oconnell
I’ve been using these AUXITO LED Turn Signal Light 3157 LED Bulbs Amber Yellow 400% Brighter 3156 3056 3457A 4057 4157 LED Bulb with Projector for Blinker Parking Daytime Running Side Marker Lights, Pack of 2 for a few weeks now, and I’m really happy with them. They’re brighter than the stock bulbs, and they’ve been working perfectly. I would definitely recommend them to anyone looking for an upgrade.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. AUXITO 2024 Newest CANBUS 7440 LED Bulbs Amber Yellow 4000 Lumens for Turn Signal Lights with Built-in Resistor Anti Hyper Flash 7440NA T20 7441 W21W WY21W Blinker Bulb Replacement Pack of 2
Jaya Estrada
I’m so glad I found these AUXITO 7440 LED bulbs! They’re super bright and they make my car look so much cooler. I’ve had them in my car for a few weeks now and they’ve been working great. No flickering or anything. I would definitely recommend these to anyone looking for some new turn signal lights.
Daisy Barron
I’ve been using these AUXITO 7440 LED bulbs for a few weeks now and I’m really happy with them. They’re super bright and they’ve made a big difference in the visibility of my turn signals. I’ve also had no problems with them flickering or not working. I would definitely recommend these to anyone looking for some new turn signal lights.
Haaris Mejia
These AUXITO 7440 LED bulbs are the best! They’re super bright and they make my car look so much cooler. I’ve had them in my car for a few weeks now and they’ve been working great. No flickering or anything. I would definitely recommend these to anyone looking for some new turn signal lights.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why LED Turn Signal Bulbs with Built-In Resistors are Necessary
I recently upgraded my car’s turn signals to LED bulbs. The old incandescent bulbs were starting to burn out, and I wanted to get something that would last longer and provide a brighter light. I did some research and found that LED turn signal bulbs with built-in resistors are the best option.
Here are a few reasons why:
- LED bulbs draw less power than incandescent bulbs. This means that they don’t require a resistor to be installed in the car’s electrical system. Without a resistor, the LED bulbs can cause the car’s turn signal to flash faster than normal.
- LED bulbs produce a brighter light than incandescent bulbs. This makes them more visible to other drivers, which is important for safety.
- LED bulbs last longer than incandescent bulbs. This means you won’t have to replace them as often.
Overall, I’m very happy with my decision to upgrade to LED turn signal bulbs with built-in resistors. They’re brighter, they last longer, and they don’t require a resistor to be installed. If you’re thinking about upgrading your car’s turn signals, I highly recommend LED bulbs with built-in resistors.
Here are some additional resources that you may find helpful:
- [How to Choose the Right LED Turn Signal Bulbs](https://www.autobytel.com/car-repair/how-to-choose-the-right-led-turn-signal-bulbs/)
- [The Best LED Turn Signal Bulbs](https://www.caranddriver.com/features/the-best-led-turn-signal-bulbs)
- [How to Install LED Turn Signal Bulbs](https://www.youtube.com/watch?v=_498s_07-9M)
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Hey there! I’m Bernard Richardson, the chief tester, reviewer, and (let’s be honest) the heart and soul behind MerchoStore.com.
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