so I just bought a rx350 2013 f sport, the wife's complaining that the light output in the night sucks compared to her old car which was a lx570.
I put in voltage kit in the lx570 4300k since it didnt come with hids and to be honest I think the lx570 light output was much more.
how is this even possible? I have just ordered a voltage kit from xenon depot for her fogs in the RX, so hopefully that helps

but my question remains hows the factory output is less than the aftermarket kits?

 

Give her time to adjust. The RX has an amazing pair of projectors (fairly wide, great distance output, etc), and generally regarded as some of the best. She'll start wondering why her old headlights were so poor after a while.

Those aftermarket HID kits in halogen projectors produce way too much foreground light due to the way the projectors were designed for optimizing the halogen's light spread and not for HIDs. This gives the impression that it has much better output when it reality, it does not. Too much foreground light means you eyes can't adjust completely at night so you can't see anything in the distance, so what's the benefit of that if you can't see anything far away? That makes all the difference if you're on a dark road and a deer pops out and you couldn't see it because of the foreground light ruining your ability to see into the distance. It's a pretty bad habit with people throwing HID kits in reflector housings, they assume the light output is better when it's not. They then upgrade to a 55w kit to see more, which only blinds their fellow drivers and doesn't really solve their problem.

As for a kit in her fogs, again, all it would do is throw out more foreground light along with a slice of glare for her fellow drivers. I wouldn't recommend it, but it's not my car. Take my advice, ignore my advice.

 

thanks for the input- the projectors in the LX570 were leveled to reduce any Glare had had a real nice cut off. i will see if i have a pic somewhere, just want to add some light to the car. Were we live its a long stretch of road in the middle of nowhere so in the night its real dark + lots of deers and animals good lighting is crucial.

 

Right,the projectors in the LX570 were leveled to reduce any Glare had had a real nice cut off.