Do LED brake light bulbs need resistors?
Most LED brake light bulbs don't need resistors - they're designed to work straight out of the box. However, if you're using a dual-function bulb (one that serves as both a brake light and a turn signal), you'll need to install resistors. This prevents the rapid flashing or "hyper flashing" that often happens with LED turn signals and ensures your lights work exactly as they should.
Pro tip: Check your vehicle's manual or the bulb socket to confirm if you have a dual-function setup.
Do brake bulbs need to be red?
Yes - red tail light bulbs aren't just a style choice - they're required by law in all 50 states.
Red is the universal color for brake lights because it's highly visible at long distances, especially at night or in poor weather. Your brain is wired to quickly recognize red as a warning signal, helping other drivers react faster when you brake.
A word of caution: Installing a white LED bulb behind your red lens might seem like a workaround, but it will only create a washed-out pink color. This not only looks unprofessional but could also make your brake lights less visible to other drivers - and potentially get you in trouble with the law.
Can you have different color brake lights?
No - it's red or nothing when it comes to brake lights in the U.S. While custom lighting can look great in other areas of your vehicle, brake lights must stay red to keep everyone safe on the road. Just like how we all know to stop at red traffic lights, the universal red glow helps drivers quickly recognize when someone's slowing down ahead.
Are LED red tail lights and red tail brake lights the same thing?
While they're both red and located at the back of your vehicle, tail lights vs brake lights have different purposes:
LED tail lights work like your car's nighttime rear outline - they're always on when your headlights are running, helping other drivers spot your vehicle in low-light conditions.
LED brake lights are significantly brighter than tail lights and only flash to life when you press the brake pedal, giving drivers behind you an instant visual warning.
Upgrading to LED? Keep in mind that you'll need the right type for each function. Our LED bulbs are clearly labeled for their specific use - whether that's tail light bulbs for better visibility or brake light bulbs for maximum stopping safety. Need help figuring out which is which? Just check your vehicle's manual or reach out to our team.
Why are my brake lights not working after replacing the bulbs?
When your lights aren't working after installing your new 7443 brake lights or replacing your car's 194 bulbs with LEDs, don't panic - there are several common fixes. Here's what might be happening:
The most straightforward issue could be that your new bulbs aren't properly seated in the socket. Try removing and reinstalling them, making sure they click firmly into place.
For vehicles with combo brake/turn signal lights, the problem could be in your turn signal circuit. A blown fuse is another common culprit, so check your owner's manual to locate the fuse and ensure it's still good.
Still having trouble? We recommend having a professional mechanic take a look. They can quickly diagnose whether it's a wiring issue or something else that needs attention.
How can you tell if a brake light bulb has blown?
The easiest way to check your brake lights is with a quick "buddy check". Have someone stand behind your vehicle while you press the brake pedal. They can instantly tell you if both lights are working properly, if one side is out, or if they seem dimmer than usual.
No helper available? Try these simple alternatives:
- Back up close to a wall or garage door at night and check for the red LED reflection when you tap the brakes.
- Use your phone to record a video of the back of your car while you press the brake pedal.
- Look for the brake stop light reflection in store windows when you're parked.
If you're looking for maintenance tips for long-lasting 3157 red brake lights, regular checks can help you catch problems early. This quick safety check is essential with LED bulbs since they often don't fade gradually like traditional bulbs - they typically work perfectly until they don't.
While both are dual-function bulbs commonly used for brake lights and turn signals, each is designed to fit specific vehicle makes and models.
Always check your owner's manual or existing bulb type before ordering to ensure you get the right fit for your vehicle. If you're unsure which bulb your vehicle needs, our vehicle part search can help you identify the correct replacement based on your vehicle's make, model, and year.
Is it illegal to have blinking brake lights?
It is possible to receive a ticket for a rapid, continuously flashing red brake light. This is also a sign of a failing bulb. If you’re experiencing this issue on either one or both sides of your vehicle, it is in your best interest to replace the bulb(s) as soon as possible. Not only do you want to avoid receiving a ticket, but it is best to avoid any confusion on the road as well for safety’s sake.
Why are my brake lights flickering?
If you’ve noticed (or been told by another driver) that your vehicle’s brake lights are flickering, this is a sign that the bulb(s) may be going out, or that there is faulty wiring in the circuit. Easy, “plug and play” installation makes this cost-effective, long-lasting update to your car or truck a no brainer.
