At some point i want to change/swap out some lamps on after market lights. My question is what type of lamps should we use?
The fitting is Ba15s.
I`ve had look on the .net and and Canbus comes up quite a lot.
But it is not the headlamps you want to change, is it? If the socket is Ba15s, it sounds like DRL, rear DRL, indicators, stopping light or the like. If you have a car with canbus system and ordinary incandescent bulbs, the system migth give you a bulb failure warning when you put in a LED, unless the LED is built to be canbus compatible. If the car does not have such a system, just put in a LED with the same socket. I have no idea about the M3W.
If you put a LED in the indicator lamp, it might go into "hyperflash" - a very quick cadence unless the LED is specified as non-hyperflash. A few are, most are not, but you can put i an extra ballast/resistor.
Remember, a red LED behind red lens, a white LED and red lens will turn out pink.
Concerning headlamps, there are LED versions of most bulbs, H7, H4 and others. They are a direct replacement, but possibly not road legal in the UK - you'll find out. Watch the canbus issue, though. I do not have personal experience of M3W headlamps, but they will most likely be a lot better than OE. It might be even better though, changing the whole unit. So the question is how bright is bright enough for yor kind of driving, how much are you willing to spend and how invasive do you want to be.
