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)

These OXILAM 7507/PY21W LED bulbs are absolutely fantastic and exactly what I was looking for! They are incredibly bright – the 2800LM output makes a HUGE difference compared to the dim factory incandescent bulbs. My turn signals are now significantly more visible both day and night, which adds a nice safety element. The amber yellow color is sharp and clear.Installation was simple plug-and-play, fitting perfectly into the BAU15S socket. The absolute best part is the built-in load resistor – truly CANBUS error-free! I experienced ZERO hyperflash and no annoying warning lights on my dashboard, which was my main concern when switching to LED signals. These bulbs just worked perfectly right out of the box.The instant on/off of the LEDs also looks much cleaner and more modern than the slow glow of the old bulbs. If you want a major upgrade in brightness and visibility for your turn signals without any hyperflash or error code headaches, these OXILAM bulbs are the perfect solution. Highly recommended!

Works great 2024 Mitsubishi Mirage G4 SE... spent the time researching and chose this quality product for blinkers. Very glad I did buy this product!! Perfect fit, Easy changeout! No issues, no fault code!! Very bright compared to the original (barely visible OEM incadescent bulbs). It does cast out a true orange color. Not sure how it might work on other Mitsubishi's but it was a perfect match for mine. I ended up changing out the front and rear blinker bulbs same company. Expensive, yes, but it was definately worth it Pic shows the old vs new bulbs (significant difference)

Edit: I got a chance to install the bulbs in my wife's car and they work as advertised. I can't tell if it's because the load circuit built into the bulb just happens to be sufficient for her car and the included load resistors would still be necessary for other vehicles, but they definitely do include a load circuit and driver in the bulb. (It was raining and I didn't have the ability to put them thru exhaustive tests with meters, plus I don't know what resistance the car looks for.)The bulbs are super bright and have a color temperature that's easier for the human eye to see than the OEM amber halogen bulbs. No one's going to miss it when my wife changes lanes or makes a turn. The instant on/off of the LED vs the fade in/out of the halogens is very eye-catching and, along with the added brightness, should increase visibility especially on bright days.I suspect that there's a holdover in the packaging method that put the unneeded resistors into the packaging. They may have originally shipped with non-CANBUS bulbs and were just packed in by mistake. (I guess I've got two extra load resistors and heat sinks hanging around for future projects now, because these aren't going back.)Review adjusted to 5 stars. While there was some initial confusion that could have been easily avoided, the product works as expected and advertised. Well worth the price and easy to install in the car I'm working with (2013 Hyundai Genesis Coupe).See Edit. For now I'm giving these a 2 star review based on the difference between the ad and the package. These arrived today and, full disclosure, I haven't installed them yet. The ad lists that there's a built in load circuit, but yet these still come with load resistors in the box and instructions for how to install them.That the resistors are included rather than sold separately is nice, however, the point of CANBUS bulbs is to not produce errors and avoid cutting into the wiring with load resistors (as well as avoiding the minor hassle of positioning the resistors to dissipate heat). These were advertised to not need resistors at all. At this point I can only assume that either the bulbs don't have built in load circuits as advertised, they're potentially underpowered and will only avoid errors and hyperflashing on some cars, necessitating the use of additional resistors to compensate, or I somehow got the wrong item. Nowhere in the ad is it mentioned that anything other than the bulbs themselves are included, so seeing load resistors in the box was an unpleasant surprise.I'll be installing one bulb tomorrow to see if it produces an error or hyperflashing. I'll update my review accordingly. If the resistors are required to make these truly error free, I'll be returning them as they're for my wife's car and I'm not willing to cut into her wiring when I know there are bulbs that don't require it (I have several in my own vehicle and two in her front signals, but I didn't want to use switchbacks that might blind drivers behind her or appear to be reverse lights while they're not flashing).Hopefully this is an oversight, or mistake, but I wanted to give fair warning to anyone who considers purchasing these before I can determine the reality of the situation. I'll update when I have more information.

Installed these in my wife's 2013 Kia Sorento. I bought these because they have built in resistors and don't require external resistors be installed. They work great, with no hyperflash. And they are VERY bright.

FINALLY! NO HYPERFLASHING and ULTRA BRIGHT. 2008 Prius. I was checking all auxbeam, auxito, aux...whatever and finally those ones I found.1 star less becase 25usd per 2 leds IT IS EXPENSIVE AS HECK. So spending 50usd plus tax.. it is a cost. Today 2025 resistor build-in should be a standard. I would price them around 15usd per pair max. This is my opinion. We will see how long it will last.

After much searching, I've finally found them!Installed in just a few minutes (this will vary depending on your level of experience and the vehicle - some are more difficult than others, and if you have the correct tools. Changing vehicle lights is NOT a difficult job by any stretch though). Installed in a 2022 Elantra, rear turn signals.The Verdict: Bright, but not *too* bright - just about perfect, and no hyperflashing that I can tell, even after ~3 minutes continuous use, which is just fine for my purposes. I don't see a scenario in which I will need to have my signals on any longer than this.I may get a pair for my front lights now too!

Update: I do always try to read the description but did miss these are single filament bulbs so do not have an running light function. I stand by below as they are nice bulbs but now realizing I need different ones to retain running lights.After hours of searching, was happy to see a LED bulb that has the load resistor/anti hyper-flashing solved in one. Other bulbs I was looking at does say that they are frequently returned and that is because of the hyper -flashing which i am familiar with and know how to fix. The good news is, these are accurate and are plug and play. On my truck it was a hassle and a half to get to the headlight bulb location for the turn signal but after getting that figured out was able to unplug the old bulb and plug these new ones right in. Before I put everything back I tested and it worked flawlessly with no hyper flashing. Very bright and sleek looking.

Bright, and the car does not think that the bulb is dead. However, the white bulbs are NOT for turn signals. The amazon alert for my car said they were.