Titanium 182
So I have bought some 501 led white sidelights to use instead of my blue ones, but when I put the sidelights in they don't seem to work? I had one in my interior light at first and it worked great but once I took it out once and went to put it back in it didn't work again, my blue ones and the normal orangey coloured sidelights work fine but these white ones don't for some reason, anybody perhaps know why?