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)

This is my second set of these LED replacement blinkers. The first set lasted about a year and a half almost 2 years which is a decent lifespan in my opinion. I tried a different brand when those went out and they were nowhere as good. These are brighter they have a better color making them much more visible and they simply work right out of the box. The others did not work even though it said they would. These provide the proper resistance so that it is almost equal to the standard incandescent bulb. They fit perfectly installation was as easy as a normal bulb their appearance is a little techy or futuristic if you look through the lens and I believe they are a good value for the money.

Got rid of the Thomas Edison builds and now the turn signals are brighter, low energy and impressive! Great value not a lot of money for a simple uprade. Easy to install and worked immediately. No problems with shipping or delivery. Extremely pleased. Fits perfectly no issues. No hyperflashing. For both my Acura RDX and Honda Element

Defeats the KIA CANBus! These LEDs are awesome halogen turn signal replacements. Look no further for replacing KIA turn signal halogen light bulbs. I swapped these for the old light bulbs 6 months ago. They are super bright! (light up the front and rear driver’s side and passenger side outside areas) and can be seen all over the road. These are so bright they are almost ridiculous. They don’t hyper blink, don’t require inline resistor installation and are a direct fit for KIA turn signal bulb sockets. Easy and simple to install, takes about 10 mins to complete all 4 swaps.

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.

These Red 7443/7440 Taillight Turn Signal LEDs are not bad for the price, decently bright, but I'm not convinced they are 4000 Lumens when blinker is activated... Probably more like 2000lm or less at 800~1200lm each bulb. Which still isn't too bad, as most on market are even less than this. Unfortunately I still experienced the Rapid Flash with them on my 04-08 Gen 3 Acura TL an they are suppose to have a built-in Resistor for error free plug & play set it and forget it, no needed Resistors to buy! So, UNLESS you ALREADY have a pair of 50Watt 6 Ohm Resistors laying around... Don't even bother cause you'll spend another $10-$25 on some good Resistors anyways. Instead take that money and spend it on some GTR Carbide 2.0 built in Resistor LEDs. For basically the same price and no messing with finding a spot to mount the Resistors (the FRONT is very problematic with finding high enough space away from puddles and water to mount Resistors with 3M Double Sided Tape/screws, as they reach up to 300° and can melt your headlight and other lighting etc, wiring harnesses! The better ones are the ones that only get half that temperature of 150~200°)... Anyhow the Rears in trunk quarter panels are much easier to mount Resistors with the double sided 3M tape. Lastly when I went to remove the bulb from the socket the Black bottom part of the body of the LED separated from the Silver top! Wasn't to happy as they need to not skimp on some proper bonding adhesive glue... I don't know why that happened but if these were truly 4000 lumens and had a better built-in Resistor, and glue used in assembling the Body then thread would be very good, so far they are just decent, but didn't impress me all too well... I should give 3.5 stars because of the Resistors not doing their Job like they are supposed to do, and the separation of the body when trying to remove from socket, but I gave the benefit of the doubt with 4 Stars Just because they are a tad brighter than most probably on the market. There is room for improvement even if it cost literally $2-$5 more for the set it would be worth spending $25 then if it fixed the 2 issues.

I purchased both the RED & AMBER bulbs. I can confirm that the AMBER LED bulbs work perfectly for the 2021 Chevrolet Suburban RST. Super bright, crisp, and no hyperflash even without external resistors. I upgraded all of the incandescent bulbs in the taillights (since Chevy let us all down with that choice). I did not use external resistors for any of them. I do get a message about checking my brake lights when I start the car, but nothing that interferes with functionality.

The good: -Extremely bright and noticeable to other traffic -Good fitment for incandescent bulb sockets and very easy replacement -Theoretically more energy efficient for hybrids The bad: -Very expensive compared to incandescent bulbs -These have directional polarity so you need to pay attention when installing them -Heat: these overheat VERY easily and will start hyper flashing when they do. Sitting with my turn signal on for more than maybe 20-30 seconds at a light causes them to overheat and hyper flash. -Overheating and hyper flashing will eventually kill these. I already had two die on me.

Great product, no resistors necessary! VERY VERY bright. Fixes hyperflash issue that other LEDs have.

Iluminación súper intensa, de noche incluso puede deslumbrar. Pero, una fallo después de 18 meses

Nice and bright turning signal lights. Cannot comment on longevity yet.

ممتازة.. اشتريتها للمبات الاشارة وكانت شغالة بشكل طبيعي بدون سرعة

This LeD are fantastic, super bright. Delivered 1 week early!

Totalmente funcional el canbus, no generan hyperflasheo. Iluminan bastante sin ser demasiado exagerado. Aparte de que por cómo el foco tiene acomodados los leds, la proyección en el faro genera una imagen tipo hélice que se ve muy bien.