VANSSI BAY15d 1157 LED 21-SMD High Power Dual Beam P21/5W LED Tail Stop Brake Lights Bulb - White (Pack of 2)

The product arrived in the same professional looking box as the LED Bulbs from the same seller and an anti-static style bag inside, no instructions are included but it is clear from the listing what you need to do (Short circuit the 2 bulb wires and put the load resistor between it).Installation was easy with the included cable clips and the product did the trick and stopped the hyper-flash. I only needed 1 load resistor per side but you may need 2 depending on what vehicle you are using.It does get VERY HOT if you are using it on a constant light, like side lights/tail lights. On indicators, they are not really on long enough to get too hot but you shouldn't mount this anywhere near plastic.The one thing that let this down was the wrong dimensions on the product description, it stated "38.2 x 31.6 x 2.2 cm" which led to amazon sending out a tiny box inside a massive box. I can't really blame Amazon for that as it is clearly misquoted on the description.

They are very bright, and on some vehicles may end up being "too bright". The reason is that a normal 5/21 bulb has the filament for the illumination _OFF_ center and the break light dead focus center. A LED cannot produce the same effect as a filament so depending on where the LEDs end up relative to the reflector the "illumination" ones may be emitting as expected from the "break" filament. The hallmark is extremely bright - outright dazzling light. That is the case on my D-Max.If that is the case - taping the inner-most row of leds with insulation tape fixes the issue - that is the row which is likely to be shining at the reflector.All in all, well made, fit for purpose, but needs to be double-checked after installation and compared to stock lights to ensure it works correctly.

(Ford Focus Mk2)I've just received these lights today (10 Jan 16) and I already love them. The LEDs are all very clear and illuminate evenly with a nice crisp red. There was absolutely no hassle with installation and they work exactly as they should with regards to getting brighter when braking. The design is nice and solid too - looks and feels like they are made to last.In testing the light output from the LEDs, they are noticeably brighter during the day compared to my old halogens which is great because this is my main aim in replacing all my lights with LEDs.Design wise these are also quite clever. The main body is split in three - basically a triangle as visible in the product pictures. Each side has 6 LEDs on. The top of the unit then has three LEDs under a magnifying lens. This design is perfect as it not only points light towards anyone following, but also lights up the reflectors in the housing.I'm very happy with the product so far, and will update this review in a few weeks with my findings after some more thorough use.

Overpriced and very little difference between 5w and 21w so how would anybody know brake light came on in tail light and brake mode in the dark. There are brighter ones out there and one needs to temper comments about brightness with did nd have they tried others? I have and these are dim in compariosn - happy to provide links. The eternal issue is when they get got do they stop working as most do if fitted as dlr's great as what else well nothing since this version is stop and tail.

Seem good ... Look well made and work fine so far - no CANBUS issues / warnings showing up on '07 R56 Mini Cooper SRunning 3 sets on rear lights/brake lights and reversing lights.

Was what I expected from the description. Much brighter than the ordinary stop and tail lamps.

The light output is great but doest work when lights are on wiring mods need to be done for this to work.Used on Audi TT N8 no good.

They work well on my caravan as indicator flasher lights. They are about 1cm taller than the bulb they replace so check for room in reflectors. Much brighter than the P21W bulbs. Good yellow colour through the amber reflectors