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4257 4257NA Amber CanBus LED Bulbs Turn Signal Light | Error Free Anti Hyper Flash, T3 Series Upgraded Version | 2 Bulbs

$69.99

SKU#:T3-4257A

You Save 14% ($10.00)

Important Notice:

• Our LED replaces halogen bulbs only. It does not replace HID or LED from factory.

• Please leave your vehicle make/model/year to cart before place the order, so we can provide follow-up support to you better in the future.


  • 2023 Upgraded LED Turn Signal Light-T3 Series 4257

    Lasfit T series LED bulbs are specially made for turn signal lights, high brightness, and a built-in canbus decoder, no extra harness or load resistors are needed, plug and play, it's very convenient to replace the stock halogen turn signal light bulbs. Lots of people have got Lasfit T series LED bulbs and most of them are satisfied with their performance. T series LED bulbs are not perfectly compatible with some vehicles or can't work stably on some specific models and caused error code or hyper flash. Lasfit always deeply cares about user experience and has upgraded the T series based on customers' feedback.

    What are T3 Series LED Turn Signal Lights?

    Upgraded Can-Bus Decoder System

    The most annoying thing for users is that compatibility problems such as dashboard errors, hyper flash, or working stably for a couple of minutes then starting hyper flash, frequently occur after replacing LED turn signals with LED bulbs. The built-in canbus decoder of T3 series LED bulbs increases the wattage to match the OEM computer inspection system and prolongs the decoding time, no error code, and you don't worry about hyper flash after working for a few minutes.

    Softer Output Amber Lighting

    Some customers complained T series LED turn signal bulbs are a little bit too bright and glare at other traffic, so the T3 series is reduced luminance. Equipped with 20 high-light flip chips, the bulbs provide 2000LM and 24W of lighting, ensuring sufficient brightness for your vehicle. Additionally, the soft beam pattern helps prevent flashing to the side of passers-by.

    Built-in Intelligent Temperature-Control System

    Excellent Intelligent Temperature Control system will protect bulbs against excessive current and overheating and ensure a longer lifespan.

    Safety Protection

    While other LED bulbs on the market have sacrificed heat dissipation due to their small size, Lasfit has listened to user feedback regarding bulb lifespan and focused on developing T-series. These LED bulbs utilize smart IC chips and fuses, as well as aviation-grade aluminum for superior heat dissipation. Additionally, a built-in thermal insulation layer further enhances heat dissipation performance to provide a longer lifespan for the bulb.

    Product Spec

    Product: T3-4257A
    Package Includes: 2 Bulbs
    Fit Size: 4257 / 4257NA / 4257NALL / 4257NAK / 4257A
    Installation Position: Front Turn Signal Light
    Wattage: 24W/bulb(max)
    Lumens: 2000LM/bulb(max)
    Color: Bright Amber
    LED Chips: 20pcs 3030 high-intensity LED Chips
    Socket: standard socket

    Try Lasfit T3 LED Turn Signal Bulbs with Confidence

    ● 45 Days Money-Back Guarantee
    Our return policy allows you to return your purchase within 45 days of the date of purchase for a full refund, no questions asked. We make the return process hassle-free by providing a return shipping label for your convenience.​
    ● 1-Year Hassle-Free Warranty
    Lasfit provides a hassle-free return policy and warranty for 1 year. In the event of any quality issues, we offer an easy exchange or return with a provided return label.
    ● (909) 758-7900 - Telephone Service, talk to a specialist
    ● Email Customer Service, 24-hour response

    Customer Reviews

    Based on 11 reviews
    91%
    (10)
    9%
    (1)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    S
    Sean Ealy
    Rear turn signal led bulb

    My new F150 came with dim halogen rear turn signal bulbs. These are way brighter, and they do not hyper flash, which is very important..

    B
    Beau Davis
    2021 f150 XLT

    I had the same issue as another reviewer where the bulb would randomly hyperflash 6 times or so before returning to normal, but it only did that on the dash. The bulbs themselves didn't hyperflash. I had a similar issue with a competitors bulbs. I just used forscan to turn off the bulb outage signal. That fixed it

    Hello Beau,

    Thank you for sharing your experience with our 4257 CanBus LED bulbs. We're sorry to hear that you experienced the hyper flashing issue after installation of these bulbs and a similar issue with a competitor's bulbs, but we're glad that you were able to fix it using Forscan. We understand how frustrating hyperflashing can be, and we're happy to hear that our bulbs did not have that issue.
    We would like to assure you that our bulbs come with a 1-year warranty and lifetime service support. If you encounter any problems with our products, please do not hesitate to reach out to us for assistance. We're always here to help.
    Thank you for choosing our products, and we hope to continue serving you in the future.

    We also reached out to you through our customer support email cs@lasfit.com.
    If there is anything you'd like us to assist you with, we'll be glad to help you!

    Sincerely,
    Lasfit Customer Support Team

    R
    Robert H
    2023 f150 XL

    Purchased the complete kit and the taillight and brake lights as soon as they became available. Well packaged and quick shipping, the lights are a tremendous upgrade to my stick bulbs. I’ve had no issues with hyper flashing. Highly recommended .. the quality of the bulbs is consistently great 👍

    G
    G.C.
    2020 ford f150 xlt

    I had the same issue as another reviewer where the bulb would randomly hyperflash 6 times or so before returning to normal, but it only did that on the dash. The bulbs themselves didn't hyperflash. I had a similar issue with a competitors bulbs. I just used forscan to turn off the bulb outage signal. That fixed it.

    Hello Gregory,

    Thank you for posting your review. Your feedback is very important to us!
    We apologize for any inconvenience you experienced with the hyper flashing issue on your Ford F150 XLT. We're glad to hear that using Forscan to turn off the bulb outage signal solved the problem for you and we will forward it to our product team.
    We offer a 1-year warranty and lifetime service support, if any product problem you meet, please feel free to contact us for help.

    Feel free to email back to customer support email cs@lasfit.com if you need any further support.

    Sincerely,
    Lasfit Customer Support Team

    R
    Richard Lynn
    4257 4257NA Amber CanBus LED Bulbs Turn Signal Light | Error Free Anti Hyper Flash, T3 Series Upg...

    The products are nice but I still get hyper flash when the turn signal is activated. It hyper flashes 6-8 time before retuning to normal. I also get radio buzz when the turn signals or headlights are on, Customer service told me to swap light bulbs? Really. Products are great but CS leaves a lot to be desired. The bulbs are very expensive and are packaged very well, but once again CS isn't what it should be. Very disappointed in the customer service. I opted for quality resistors at another vendor. We'll see if that works?

    Hello Richard,

    Thank you for bringing your concerns to our attention.
    ​We sincerely apologize for any confusion and inconvenience caused by the suggestion to swap light bulbs as a troubleshooting step.
    Actually, it's our first time encountering such an issue that the turn signal lights hyper flash 6-8 times before returning to normal, and we really want to figure it out and help you further.
    If possible, please send us a short video to show how it happens, so we will check what causes the problem.

    For the radio buzz when using our headlight bulbs, we would like to offer you a full refund for the resistors you purchased from another vendor, it would be great if you could send us the receipt, so we can see how much you paid.
    But if you haven't purchased them, we will send our resistor harness without charge for you to fix the issue.

    In addition, we have reached out to you through our customer support email cs@lasfit.com to follow up.
    If there is anything else we can do to assist you or if you have any further questions, please do not hesitate to let us know.

    Sincerely,
    Lasfit Customer Support Team

  • Customer Reviews

    Based on 11 reviews
    91%
    (10)
    9%
    (1)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    S
    Sean Ealy
    Rear turn signal led bulb

    My new F150 came with dim halogen rear turn signal bulbs. These are way brighter, and they do not hyper flash, which is very important..

    B
    Beau Davis
    2021 f150 XLT

    I had the same issue as another reviewer where the bulb would randomly hyperflash 6 times or so before returning to normal, but it only did that on the dash. The bulbs themselves didn't hyperflash. I had a similar issue with a competitors bulbs. I just used forscan to turn off the bulb outage signal. That fixed it

    Hello Beau,

    Thank you for sharing your experience with our 4257 CanBus LED bulbs. We're sorry to hear that you experienced the hyper flashing issue after installation of these bulbs and a similar issue with a competitor's bulbs, but we're glad that you were able to fix it using Forscan. We understand how frustrating hyperflashing can be, and we're happy to hear that our bulbs did not have that issue.
    We would like to assure you that our bulbs come with a 1-year warranty and lifetime service support. If you encounter any problems with our products, please do not hesitate to reach out to us for assistance. We're always here to help.
    Thank you for choosing our products, and we hope to continue serving you in the future.

    We also reached out to you through our customer support email cs@lasfit.com.
    If there is anything you'd like us to assist you with, we'll be glad to help you!

    Sincerely,
    Lasfit Customer Support Team

    R
    Robert H
    2023 f150 XL

    Purchased the complete kit and the taillight and brake lights as soon as they became available. Well packaged and quick shipping, the lights are a tremendous upgrade to my stick bulbs. I’ve had no issues with hyper flashing. Highly recommended .. the quality of the bulbs is consistently great 👍

    G
    G.C.
    2020 ford f150 xlt

    I had the same issue as another reviewer where the bulb would randomly hyperflash 6 times or so before returning to normal, but it only did that on the dash. The bulbs themselves didn't hyperflash. I had a similar issue with a competitors bulbs. I just used forscan to turn off the bulb outage signal. That fixed it.

    Hello Gregory,

    Thank you for posting your review. Your feedback is very important to us!
    We apologize for any inconvenience you experienced with the hyper flashing issue on your Ford F150 XLT. We're glad to hear that using Forscan to turn off the bulb outage signal solved the problem for you and we will forward it to our product team.
    We offer a 1-year warranty and lifetime service support, if any product problem you meet, please feel free to contact us for help.

    Feel free to email back to customer support email cs@lasfit.com if you need any further support.

    Sincerely,
    Lasfit Customer Support Team

    R
    Richard Lynn
    4257 4257NA Amber CanBus LED Bulbs Turn Signal Light | Error Free Anti Hyper Flash, T3 Series Upg...

    The products are nice but I still get hyper flash when the turn signal is activated. It hyper flashes 6-8 time before retuning to normal. I also get radio buzz when the turn signals or headlights are on, Customer service told me to swap light bulbs? Really. Products are great but CS leaves a lot to be desired. The bulbs are very expensive and are packaged very well, but once again CS isn't what it should be. Very disappointed in the customer service. I opted for quality resistors at another vendor. We'll see if that works?

    Hello Richard,

    Thank you for bringing your concerns to our attention.
    ​We sincerely apologize for any confusion and inconvenience caused by the suggestion to swap light bulbs as a troubleshooting step.
    Actually, it's our first time encountering such an issue that the turn signal lights hyper flash 6-8 times before returning to normal, and we really want to figure it out and help you further.
    If possible, please send us a short video to show how it happens, so we will check what causes the problem.

    For the radio buzz when using our headlight bulbs, we would like to offer you a full refund for the resistors you purchased from another vendor, it would be great if you could send us the receipt, so we can see how much you paid.
    But if you haven't purchased them, we will send our resistor harness without charge for you to fix the issue.

    In addition, we have reached out to you through our customer support email cs@lasfit.com to follow up.
    If there is anything else we can do to assist you or if you have any further questions, please do not hesitate to let us know.

    Sincerely,
    Lasfit Customer Support Team

  • Customer Reviews

    Based on 11 reviews
    91%
    (10)
    9%
    (1)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    S
    Sean Ealy
    Rear turn signal led bulb

    My new F150 came with dim halogen rear turn signal bulbs. These are way brighter, and they do not hyper flash, which is very important..

    B
    Beau Davis
    2021 f150 XLT

    I had the same issue as another reviewer where the bulb would randomly hyperflash 6 times or so before returning to normal, but it only did that on the dash. The bulbs themselves didn't hyperflash. I had a similar issue with a competitors bulbs. I just used forscan to turn off the bulb outage signal. That fixed it

    Hello Beau,

    Thank you for sharing your experience with our 4257 CanBus LED bulbs. We're sorry to hear that you experienced the hyper flashing issue after installation of these bulbs and a similar issue with a competitor's bulbs, but we're glad that you were able to fix it using Forscan. We understand how frustrating hyperflashing can be, and we're happy to hear that our bulbs did not have that issue.
    We would like to assure you that our bulbs come with a 1-year warranty and lifetime service support. If you encounter any problems with our products, please do not hesitate to reach out to us for assistance. We're always here to help.
    Thank you for choosing our products, and we hope to continue serving you in the future.

    We also reached out to you through our customer support email cs@lasfit.com.
    If there is anything you'd like us to assist you with, we'll be glad to help you!

    Sincerely,
    Lasfit Customer Support Team

    R
    Robert H
    2023 f150 XL

    Purchased the complete kit and the taillight and brake lights as soon as they became available. Well packaged and quick shipping, the lights are a tremendous upgrade to my stick bulbs. I’ve had no issues with hyper flashing. Highly recommended .. the quality of the bulbs is consistently great 👍

    G
    G.C.
    2020 ford f150 xlt

    I had the same issue as another reviewer where the bulb would randomly hyperflash 6 times or so before returning to normal, but it only did that on the dash. The bulbs themselves didn't hyperflash. I had a similar issue with a competitors bulbs. I just used forscan to turn off the bulb outage signal. That fixed it.

    Hello Gregory,

    Thank you for posting your review. Your feedback is very important to us!
    We apologize for any inconvenience you experienced with the hyper flashing issue on your Ford F150 XLT. We're glad to hear that using Forscan to turn off the bulb outage signal solved the problem for you and we will forward it to our product team.
    We offer a 1-year warranty and lifetime service support, if any product problem you meet, please feel free to contact us for help.

    Feel free to email back to customer support email cs@lasfit.com if you need any further support.

    Sincerely,
    Lasfit Customer Support Team

    R
    Richard Lynn
    4257 4257NA Amber CanBus LED Bulbs Turn Signal Light | Error Free Anti Hyper Flash, T3 Series Upg...

    The products are nice but I still get hyper flash when the turn signal is activated. It hyper flashes 6-8 time before retuning to normal. I also get radio buzz when the turn signals or headlights are on, Customer service told me to swap light bulbs? Really. Products are great but CS leaves a lot to be desired. The bulbs are very expensive and are packaged very well, but once again CS isn't what it should be. Very disappointed in the customer service. I opted for quality resistors at another vendor. We'll see if that works?

    Hello Richard,

    Thank you for bringing your concerns to our attention.
    ​We sincerely apologize for any confusion and inconvenience caused by the suggestion to swap light bulbs as a troubleshooting step.
    Actually, it's our first time encountering such an issue that the turn signal lights hyper flash 6-8 times before returning to normal, and we really want to figure it out and help you further.
    If possible, please send us a short video to show how it happens, so we will check what causes the problem.

    For the radio buzz when using our headlight bulbs, we would like to offer you a full refund for the resistors you purchased from another vendor, it would be great if you could send us the receipt, so we can see how much you paid.
    But if you haven't purchased them, we will send our resistor harness without charge for you to fix the issue.

    In addition, we have reached out to you through our customer support email cs@lasfit.com to follow up.
    If there is anything else we can do to assist you or if you have any further questions, please do not hesitate to let us know.

    Sincerely,
    Lasfit Customer Support Team