1157 Bay15D P21/5w LED Bulb, DC12V-24V 6W With Projector Super Bright 6000K, For Car Brake Lights, Parking Tail, Stop Light, Reverse Lights. (Pack Of 2)

Received these today. Fitted with mods. 1 Orange indicator bulbs did not fit, cause the pins should be off set 150 degrees, sanded the 1 pin off, squeezed the guide tabs in to secure the bulb. They are in nice & firm with silicon grease. These are very bright compared to the halogen. Only fitted these to the rear cause the CAMBUS does not like them, indicators flashing fast when only one side, slows when hazard is on, think I will get away with this, kept the old & spares in the back cubbyhole. 2 Fitted the reverse bulbs, Magic, very bright compared to the old incandescent bulbs. did not take pictures. 3 Cannot use the brake lights. The Zafira uses the same bulb for tail & brake, tail is dim, brake increases the brilliance, if you want to fit these you will have to do bench tests & do the maths for the load resistor, might just do this for fun. The Fog lights are dark red, so will have to get heat resistant colour to paint/spray/coat, should be a pen that that does this. I have made a word doc for my info, will try to copy it into here. CAR Driving lights: There are different types of bulbs. 1 Off set high & low. BAY15D, P21/5W. 2 Off set by angle, 180 degrees. BA15S, PW21W 3 Offset by angle, 150 degrees. BAU15S, PY21W. 4 Different colours, Red, Orange, Yellow & White or clear. Now for the fun part. Opel Zafira, same tail light has 3 different bulb types, now add different models with exact same tail light fitting, has different types of bulbs, just to make life fun, the LHAS bulb holder does not fit the RHS, on top of that there are different versions so the bulb holder does not always fit the old tail light assembly. NOTE Opel have CAMBUS, Ouch, so it detects the type of bulb, some LED’s will not work with the cambus. Also generic interior bulbs will blow the fuse cause they are not compatible. I have 4 different bulbs in the LHS assembly, same with the RHS assembly, BUT the RED bulb third from top is different between the RHS & LHS, so are the indicator bulbs. The RHAS assembly was replaced due to cracks & water leaks. My thoughts are they keep their sales up by making life difficult for us. Received 25 July 24, fitted with mods. Received these today. Fitted with mods. 1 Orange indicator bulbs did not fit, cause the pins should be off set 150 degrees, sanded the 1 pin off, squeezed the guide tabs in to secure the bulb. These are very bright compared to the halogen. Only fitted these to the rear cause the CAMBUS does not like them, indicators flashing fast when only one side, slows when hazard is on, think I will get away with this, kept the old & spares in the back cubbyhole. 2 Fitted the reverse bulbs, Magic, very bright compared to the old incandescent bulbs. did not take pictures. 3 Cannot use the brake lights. The Zafira uses the same bulb for tail & brake, tail is dim, brake increases the brilliance, if you want to fit these you will have to do bench tests & do the maths for the load resistor, might just do this for fun. The Fog lights are dark red, so will have to get heat resistant colour to paint/spray/coat, should be a pen that that does this. Will report back for your info. Hoping this helps Fitted the ballast resistors & indicators are working good. 10 Ohm 50W fitted with adhesive heat tape that works well. very happy cause people keep tail gating me when I indicate to turn, I do indicate well in advance. Watch this space. There are loads of people telling me I'm wrong

I bought a pair of these LED bulbs to replace my halogen dual filament brake lights in October 2021 and only one of them has failed on my car in November 2024. Well worth the money in my opinion and they are brighter than halogen bulbs, lasted longer than my halogens too (3 years so far on one bulb and the other is still going). The bulbs are quite good value overall I think but they should offer a free delivery service option as well that would take a couplle of extra days if your not locked into prime delivery as they kinda force you to pay an extra £5 for next day delivery which means I could have bought around 8 or more halogen bulbs from my local store for the overall price of these bulbs including delivery if your not locked into Amazon Prime deliveries. With that said, I have purchased a second set of these since my first purchase and would buy them again as long as the quality/value remains as is.

Fits my Citroen C4 VTI 2012 model. Lights are very bright and doesn't mess with any other electrical equipment in the car. ...2 days later on of the light went but is due to the connection not fitting securely enough - a little loose, so ultimately changed them for regular Osram lights until I find a better LED alternative. Returned.

Used these bulbs as day time running lights/side lights for my car. A great replacement to halogens! Nice and bright as drl’s and they dim slightly when used as side lights. Clear white, looks loads smarter and defy improved the look of my car. No flickering, no interference or anything. Been in for a week so far and still work perfect

These work well. Bright and white. However on my Volkswagen caddy the dashboard still tells me that the bulbs are out. Doesn’t really bother me however believe this could be an MOT failure.

Fitted these in my daughters Mini One Cabrio R52. Fitted end of April 21, so far they've had little use, but the work brilliantly. She's very please with the look and super brightness. Beware when fitting the side pins are not the same level so its easy to detach from the base as you try to twist it in place. Line up the pins correctly and its a doddle. As for longevity its to early to say. But very good value for money, especially if the do last. ENJOY

When I first got this I thought great! It all worked, very bright, direct replacement. Job done. However after the first trip out the tail light circuit failed. I am Disappointed as leds are supposed to have a long life. Clearly in this instance the manufacturing process is incapable of delivering this quality, and rather than sort out the process, continue to despatch and ship. So my advice is do not buy.

Excellent bulbs!! Nice fitting unlike some on the market, look and feel good quality too. I’ve used these to replace the brake/tail bulbs on motorbike

I installed these LEDs in the tail light of my 2001 Kawasaki Vulcan 800, and as you can see in the pictures, they are much brighter than the old halogen bulbs. I now feel much better about cars behind me being able to notice me. Installation was easy and they fit great. No issues with them so far.

Finally a well working LED P21 bulb to be used in a motorcycle tail light for increased visibility. It illuminates the licence plate really well plus a very bright brake light.

Instalado y probado en mi moto, dan mucha luz, se momento muy contento.

Montage sans difficulté sur un Peugeot 3008 de 2009. Luminosité très bonne, même si la différence entre feux diurne et veilleuse est minime. Aucun défauts affichés au niveau du tableau de bord. Le problème tient au fait que le BSI (système gérant les circuits électrique du véhicule) voient les ampoules LED comme des circuits ouverts (ampoules grillées). Ces défauts sont lisibles en effectuant un diagnostique du véhicule avec une valise (Diagbox en ce qui me concerne). L'information de défaut s'inscrivant dans le journal des défauts à chaque fois que le contact du véhicule est mis. Lorsque le journal de défauts est plein (environ 1000 défauts), celui-ci peut enregistrer les défauts en effaçant les plus anciens ou il peut provoquer le disfonctionnement aléatoire du BSI. Pour ma part, je ne prendrais pas ce risque et j'ai remonté des ampoules traditionnelles. Dommage.

Ottimo prodotto rapporto qualità prezzo molto conveniente !