ZEVO 194 T10 W5W Amber LED Bulb, (Contains 2 bulbs)

First, it's important to note that this review pertains to the Sylvania ZEVO LEDs. I've been less than impressed with non-ZEVO Sylvanias. I have installed these as Parking Lights and Outer Turn Signal Lights in my Mercedes GL450. They fit perfectly in the bases and small spaces where they are located. No flickering, hyper-flashing or CANBUS error codes. These are not the brightest LEDs out there, but super brightness in these bulb locations is not desirable. They are certainly far brighter than the halogen bulbs they replaced. Also note that the advertised lumens for Sylvania is far more realistic than those bulbs alleging 20,000 lumens. One caveat: The bulbs are polarity sensitive. So, if they don't light or perform properly when you first install them, simply turn them around. There is a red dot on one side to identify the positive terminal.

Very bright lights! I replaced my stock 2001 194 bulbs with these. Seller is an authorized seller so the lifetime warranty does apply. I won't ever have to buy another bulb like this again.

Great led bulbs I had some from the past and I purchased again to have a fresh batch ! Highly recommend!!

They're not as bright as the aftermarket LEDs but they're bright enough. I swapped these out and changed the turn signal bulbs to the Sylvania amber long life bulbs while I was at it. Looks nice & no flickering 👍🏿

Four stars because they work with no apparent issues However, these do not work if you have a vehicle like my Jeep XJ or a square body Chevy where the side markers are wired between the turn signals and parking lights so they flash with the turn signals (or opposite, if the parking lights are on). I can confirm that the similar amber 194 sold by Aero-Lites has the extra diodes built in to allow their 194s to work as side markers in a vehicle so set up. I needed to use LEDs in that position because I'd swapped the other amber bulbs to Zevo 3157s and an indandescent 194 was causing all kinds of weirdness due to the higher current draw than the LED bulbs in the turn signal/parking light positions. If you just need an amber 194 and my particular use case isn't a consideration for you, these are fine. If you do have these kinds of side markers, Aero-Lites is the ticket. Diode Dynamics also advertises their 194s as being "non polarized".