PHINLION 3157 LED Bulb Amber Yellow, Super Bright 3156 4157 3757 3457A LED Blinker Bulbs for Rear Front Turn Signal Parking DRL Side Marker Lights, Non-polarity, Pack of 2

PHINLION 3157 LED Reverse Light Bulbs: Super Bright, But Mind the Hyper-Flashing!I recently swapped out my old reverse light bulbs for these PHINLION 3157 LEDs, and the difference in brightness is truly remarkable! They live up to the "super bright" claim, illuminating the area behind my car much more effectively when backing up. This has definitely increased my confidence and safety, especially in dimly lit areas.Installation was straightforward, and they fit perfectly into the sockets. The pure white light they emit looks really clean and modern, a significant upgrade from the dull yellow of incandescent bulbs.However, there's one important caveat for potential buyers: these bulbs are not recognized by my car's computer, causing them to "hyper-flash" as if a bulb were burnt out. This means they blink at about double the normal speed when used as turn signals. While it's a minor annoyance and doesn't affect their primary function as reverse lights, it's something to be aware of if you plan to use them for other applications like turn signals or DRLs where the flashing rate is crucial. You'd likely need to install load resistors to correct this issue.Despite the hyper-flashing, I'm genuinely impressed with the brightness and quality of these PHINLION LED bulbs for reverse lights. If you prioritize superior illumination for backing up and don't mind the fast blink for other functions (or are prepared to add resistors), then these are an excellent choice!

They work

I'm happy with the bulbs. They're very bright. I'd say about 2.5 times brighter than the stock filiment bulbs. They aren't a perfect fit in my Wrangler JK fog light sockets but they do fit and function. They do cause hyper flash but not so bad that it's a deal breaker.

Works for my 2008 F150 Lariat 4x4. I will say that the signal lights are blinking faster but I am fine with that. Hope they last a long time

The 3757A/NA bulb is designed with a small change in the side tab to prevent installation of a non-amber 3157, so most aftermarket 3157 LEDs won't fit in a 3757 socket. These do. Their tabs are JUST narrow enough to clear the socket openings, and they fit solidly in my 2020 Explorer Limited's rear turn signal sockets.I used FORSCAN to stop the instrument cluster fast-flash, which is the only hyperflash you'll see on newer Fords...the exterior lights still flash normally, so you may not even feel the need to fix it. But if you have FORSCAN, you can change the BCM code 726-44-02 (2020 Explorer only) so that the second digit of the code content (x*xx xxxx xx) is a ZERO. Other Fords have different codes...don't change these unless you're sure you have the right codes for your car/truck.Also, Ford uses PWM to pulse the rear turn signals in low-light conditions, so that they're slightly less blinding. Some other LEDs don't like PWM on the on-cycle, where you'll see rapid/violent flickering instead of solid-on. These bulbs are solid-on.As for the brightness, they're just a bit brighter than the standard incandescent bulbs, and a deeper amber color than some of the other LEDs I've seen. I'd say 25-33% brighter than stock.I'm not sure how warm they'd get with the parking-lamp (low) connection running continuously, since my rear turn signals are flash-only and I didn't have a chance to test that (the 2020 Explorer's front turn signals are LED).VERY happy with these bulbs so far. The instant on-off and the higher brightness are big improvements.PROS:- solid-on, even with pulsed (PWM) input- deep amber color, really noticeably better than some other yellow/amber LEDs- slightly brighter than OEM bulbs, but only by about 25-33%, I didn't have time to grab a side-by-side video- fits 3757 sockets with no modifications- top-mounted LEDs light up nicely for direct rear-facing illumination- LEDs don't seem overdriven, so no parts of the "bulb" get even warm in turn-signal-only use- no polarity issuesCONS:- they'll probably hyperflash in most installations, but luckily, most Fords can be fixed without resistors- they're not insanely bright- they're slightly tall, so they may not fit and/or they may change the beam spreadNone of these cons were deal-breakers for me. I'll update if something changes.

If you have an older vehicle, you might need to change the blinker relay, because the wattage is so low that the relay things the bulb is blown.I had this problem on my 1993 ford E350. I got a new relay from napa for 30$ and it works great.

Bright ambar

Worked nice and bright