Philips Ultinon Pro3100 LED car signalling bulb (W21W red)

all good

Same as regular lights. Maybe a little more bright but in general no more change. Plus for majority cars it will show error and it is required to have cambus to work it properly.

سي

Lo malo que al no tener el chip de error de cambus pues no son compatibles para la gran mayoría de vehículos

La medida encaja bien entre los conectores en un Seat leon mk1 del 2001. He cambiado una bombilla original fundida sin tener que hacer ninguna modificación más (funciona con 12v) Ilumina bastante más que la de incandescencia como era de esperar. La luz es blanca (6000k), a mí me vale y además está bien de precio

Donne un coup de jeune à son véhicule. Belle éclairage et zéro défauts au tableau de bord !

اضائتها جيده انصح بها

I bought in the hope of a slightly brighter indicator light, and it achieves that. Not too bright to be silly, just that extra edge. What I hadn’t appreciated though was the additional benefit of a more distinct signal. Seeing a standard incandescent bulb side-by-side to this LED highlighted that the incandescent bulb doesn’t actually quite go out. The filament gets hot and the brief moment the power is off doesn’t give it chance to fully cool to nothing. The LED on the other hand is instantly on then off, making a more distinct, and hopefully noticeable, signal. Do note though that on some cars, my 2014 RAV4 included, you will need to increase the resistance in the signal circuit otherwise you will experience fast flashing, hyper flashing. That is just because the LEDs draw less current than their incandescent equivalent and you need to add a resistor to mimic the original load. I went for the Osram LED driving 21 watt version as a respected brand. Whilst I only changed the rear indicator bulbs for LEDs I add the resistors to the front indicator wiring as it was easier to access and allowed me to mount the resistors onto readily available metal brackets in the engine bay (that they need as they get hot!). I’m very impressed! I’ve got other Philips LEDs in other lights around the car and they’ve lasted years, so I’m confident that these will do the same. Well done Philips, another great addition to car safety.