I have the DD Luxeons on my car and I think they are just OK. They may be a bit better than the stock ones but in the real world I am not noticing a big difference. The reason I got them is because a rock went through one of my stock fog lights and thought it was a good time to "upgrade". I was expecting to be blown away when I installed them .... I was not. If I was doing this again I would look for something else.
Mod bargains has a good review of them and there's a photo showing before and after...can't pull it up on my phone right now but mine were nowhere near as bright