Has any one tried the led bulbs in our cars? They run 120 for a good set and there just plug and play. There a crap load brighter then stock.
Quality light is NOT as much about brightness as it is how it is projected down the road. The headlights in our cars do not project well, you can put the brightest style of light in there, and it will still not light up as well as a decent projector retrofit.
LED bulbs also have design issues, they aren't like an incandescent bulb that has it's light created by the filament, or an HID that has it's light created at the arc, but by a diode or series of diodes that are extremely directional. They won't bounce off the reflectors in our lenses as well as an incandescent will, and even the "plug and play" HID lights give a scattered, wide, unfocused light pattern.
You can do a few things to mitigate that dispersal, such as aim them down to not blind oncoming drivers, but that's going to severely limit your visibility as well by having a very bright point close to the front end of the car, and not further down the road where you need to see.
The only things we can do to get better light are A) Get the best incandescent bulbs you can get, make sure your lenses are clean and not yellowed/hazy, and aim them properly so they focus down the road or B) install some good projectors, make sure you're not hazy, and aim them properly.
A good projector does an excellent job with focusing the light and cutting it off so there is no bleed over.
I am of the opinion that the reason most don't flash you when you're driving down the road with "plug n play" HID's is because people just don't realize they are supposed to anymore. I very rarely get the courteous little flash to say (there's something up ahead like a police car or some deer, be careful) and people look at me confused when I do it. Older folks, guys on motorcycles, and people who actually enjoy driving tip me a wave when I do it, but even at night if I flash someone who's high beams are on, they just don't get it.