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๐ Light up your drive with LASFITโs ultra-bright, error-free switchback LEDs!
The LASFIT 3157 Switchback LED Bulb delivers 500% brighter amber turn signals and white DRL/parking lights with a built-in CANBUS resistor to prevent error codes and hyper flash on 99% of vehicles. Designed with advanced heat dissipation and a 30,000-hour lifespan, these bulbs offer easy 5-minute installation in standard sockets, combining durability, style, and flawless performance for a safer, more noticeable drive.

















| ASIN | B082QNGXV3 |
| Auto Part Position | Front |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #261 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Turn Signal Bulbs |
| Brand | LASFIT |
| Brand Name | LASFIT |
| Brightness | 4000 lm |
| Bulb Shape Size | T3 |
| Color | Amber/White |
| Color Temperature | 3000 Kelvin |
| Customer Reviews | 4.5 out of 5 stars 9,352 Reviews |
| Fit Type | Universal Fit |
| Included Components | 2* 3157 LED Bulb Switchback |
| Item Highlight | White & Amber 4000lm/set. 500% brighter than halogen. Front turn signal DRL parking light. For standard socket only. |
| Light Output Maximum | 4000 lumens |
| Light Source Type | LED |
| Manufacturer | LASFIT |
| Manufacturer Part Number | TSR-3157D-SW |
| Manufacturer Warranty Description | 1 year |
| Model Number | TSR-3157D-Y/W |
| Number of Items | 2 |
| OEM Equivalent Part Number | 3157 4157 3057 |
| Operating Life | 30000 hours |
| Package Quantity | 1 |
| Specific Uses For Product | Front Turn Singal Light |
| UPC | 810038820439 |
| Unit Count | 2 Count |
| Voltage | 12 volts |
| Wattage | 48 watts |
M**3
Works perfectly for my 2020 RAM 1500 classic truck
Good and bright replacement for the center brake light on my 2020 RAM 1500 classic truck. Easy installation, it fit perfectly and is a bright red LED light.
K**R
Best Upgrade
Absolutely amazing! Makes a huge difference, inside and outside. Inside by seeing more clearly on the screen when in reverse. It lights up so much more, you can see further. Outside because even in the day time it's way brighter to get people's attention. Ive been buying lights from this company for awhile and they never let me down.
C**W
Great bulbs and great company
These are solid led bulbs and are very bright for how small they are. One of the bulbs burned out after five years. I emailed Lasfit about it and they actually sent me a replacement pair. I thought there was a five year warranty of these bulbs but the new ones I received say 1 year warranty. So Lasfit really couldโve denied my claim but they didnโt. Kudos to Lasfit! Solid bulbs, no flicker and smooth dimming in the various Toyotas I have these installed in. Overall well made and very bright. Iโm kind of annoyed the first one burned out after only five years but Lasfit made good on their bulbs. Recommended.
Y**M
The well thought through engineering and function of these bulbs is astonishing.
I've just installed the LASFIT T3 Series 7443 / 7444NA Switchback LED Bulbs and the difference from factory bulbs to LED bulbs is astounding. Upon first inspection of the bulbs, I found them to be engineered to last, from the ceramic head over the silent cooling fan to maintain a healthy operating temperature for longevity, the fastening of the four LED boards surrounding the bulb body consisting of 5 LED's each, and to the base. I'm not anticipating any issues as it seems to be well thought through from an engineering stand point. This is my first purchase from LASFIT, and I'm impressed. The packaging was minimal but sufficient, and delivery was the same day. Hey LASFIT, great job designing these bulbs. Thank you LASFIT. Personally, I'm still waiting for someone, HINT HINT, to incorporate a Peltier tile into the LED housing for active cooling along with a fan. That will cool things off and maintain them at a healthy and stable temperature, and possibly extend the life even farther. I've included several close up pictures and video footage of the installation in order for you to somewhat see how huge of a difference these play. My apology's for the video quality; I recorded it in 8k, but for some reason beyond my amateur videography skills and knowledge it gets pixelated in the video after I combined all of it into one video. Never the less, it still delivers a representation of the difference. The drivers side (US) is the LED, and the passenger side is the factory bulb (non-LED). I have NO cons about these, and I will update my review if any negative issues develop. As it stands at the time of installation (5-10-26), I highly recommend these bulbs for anyone wanting to be more visible during night time driving. Lastly, while the white running lights are bright, I don't believe they're too bright to cause any issues with oncoming traffic.
T**G
Huge Improvement!
Great bulbs. Easy to install, perfect fit, and way brighter than factory halogen. Will make a huge difference with my backup camera.
T**R
Only ones that I've found that work for Finnicky Mini Cooper!
Mini Cooper R Series 2nd Generation. R56 / R57 / R58 / R59 / R60 / R61 I've tried Auxito and Sealight and had issues with my Mini. Those issues would random error codes when the car is scanned. Because the Voltage / Signal from lights does not compute with the FRM and causes random trouble codes. Even with Bimmercode for the Mini they wouldn't work right. Figured I would take a chance on the LASFIT since forums said they're good for BMW and Mini. They don't give any errors. I scan my car, have no issues, the codes that popped up with the other LED lights went away. Brightness is great! They look fine. They have a CANBUS chip, and mimic Halogen Bulbs. No flickering for me. Thanks!
B**M
Huge Upgrade Over Factory Reverse Lights
I installed these as reverse lights, and the difference compared to the factory bulbs is incredible. They're significantly brighter, making it much easier to see behind the vehicle when backing up at night. The light pattern is clean and provides excellent coverage without dark spots. Installation was as simple as replacing the original bulbs, and they worked immediately with no CANBUS errors or warning lights. The build quality also feels solid, and they fit securely in the socket. If you're looking for an easy visibility upgrade, these are absolutely worth it. They made a much bigger difference than I expected.
L**E
Watch one of the videos out there: makes removing tail light assembly easy.
These are awesome! Incredible white, bright back up lights. General Motors should be ashamed of the process involved to remove the rear tail light fixtures, I strongly urge you to seek out one of the excellent You Tube videos. They make the process quite a bit easier and believe me: it is worth the twenty minutes to have backing up so much safer.
R**O
Perfect
Amazing, these are exactly what I wanted, had for almost a year and still work perfect, the white is great and never have had hyperflash, takes 5 mins to take old bulbs out and put these in and make the car look way better. Great quality and look great.
R**A
Not compatible with Audi Q7 4M
Not compatible with Audi Q7 4M
M**I
Good quality
Good quality
M**T
opinion
Produit fantastique et fonctionne a merveille
J**N
Mixed feelings/review
Had switchback bulbs that lasted just over a year. Frustrating at 100.00 but I liked them so I decided id give them another shot. Ordered from here again. Labeled switchbacks. We're Amber's. Frustrating again. Installed them because I need signals that work at this point. So I guess I'm saying mixed reviews. The bulbs work great. Both the switchbacks and this amber set I didn't technically order. Longevity of the first set was not great. Jury's out on this new one. Keep it mind when you spend near 100 for bulbs. Update I have changed my review to 5 stars because lasfit reached out to me after posting a 3 star with the above and offered a partial refund for the headache. Rare these days that a company stands behind their mistakes/products for that I felt they deserve the 5.
Trustpilot
1 day ago
1 month ago