Maybe I can shed some light on the subject..
I have been selling Piaa lights for several years. If you think that Night Farce can compete SORRY! There is a lot more to it than just the price.
After a few months of use the LF tend to loosen up on the back and turn vibrate lossen up etc. They do produce a good amount of light but it tends to stop there.
Has anyone looked at the new LED systems from Vision X. I have been selling them for two years now and the quality is comparible to Piaa. Vision X also sells HID's for a reasonable price.
I have reminded people several times about after the purchase. Piaa has a lifetime warranty on ALL systems as well as Vision X. LF has a warranty but it ends when you leave WalMart.
Take a look at the wiring on Piaa and Vision X you can see the quality.
Why should you have to buy the light then find a wirring harness then a switch?
I know I am opening up a can here but look hard before you buy. I know that Piaa can be a bit spendy but they are worth the money.
Piaa offers evey type of light for any condition. From the standard fog to the un-matched HID's. Get on the web site and look at the racing products they have lights in there that offer both driving and fog in one package.
Vision X leads the industry in the LED department. If you get the chance you need to check them out. A very compact system that puts out a light that ltteraly blankets the everything in it's path. The only draw back I have found is they do not produce enough heat to melt heavy snow off the face.
Don't go cheap you will regret it I promise you that.