2PCS DE3175 Festoon LED Car Bulb 31mm 1.22in - Bright 12SMD 6500K White - Canbus, No Error - License Plate Dome Map Door Lights Review

They are much brighter and whiter than previous 19th century style lamps. But they were just a tiny bit too narrow to fit securely in my license plate light mounts. Luckily they were only gently bent to fit them. I'll leave an update if they go out soon.

Stock lamp 6418 from my Saab on the right. This new LED 6418 is on the left. As you can see, the new bulb is shorter by about 3mm, which is very important. The lamp is not firmly installed in the socket. There is play and it immediately falls out, while the original bulbs snap under the action of a spring.

In bright sunlight you can even see a small bump in the car! It's best to use a translucent lens cap, as glare can be annoying. There was also pain in the back during installation, in the end the bracket had to be removed from the roof to make it a little easier. Hope never to have to do it again.

Both lights worked fine! But not as bright as I thought. When installing one of the two, however, its end was severely bent. It still worked, but I was wondering how long it would last, so I installed the second one instead. I suggest a more accurate installation. Don't put too much pressure on it when inserting it.

Although there is a note that the LEDs have polarity and if they don't turn you must reverse them, I just tested both options and they turned on no matter what. Quality contacts and really good brightness. I tested it before putting it in the car to see if it got hot, just left it on with the 12 volt battery and it barely gets hot. No CAN bus error. All is well. Highly recommended.

MUCH brighter than the halogen I just replaced. The only downside is the clip in the boot liner of my 1996 Crown Victoria isn't very strong, allowing the pointed ends of the new light to slide back and forth and allowing the bulb to rotate instead of pointing straight down (which it has to) over time due to vibration and general driving. The halogen bulb it replaces has flat wire connectors on both ends to keep it properly in place. See photos and videos.

These bulbs are nearly the same length as the bulbs they replace. The standard bulbs are more like 30 mm, i.e. 1 mm longer. The big difference is that on standard bulbs, the sharp tips went THROUGH the small holes in the pins. The lugs on them are much larger which makes for a very snug fit. My truck light has a switch on the end that moves the entire bulb's contact either toward or away from the loaded rail. If they are stuck, this switch will no longer work. With my ceiling light, this bulb…