FWIW, I have the Trucklite knock-offs from Amazon for about $100 a pair ... they are bright and they suck to any oncoming drivers. The pattern is so bad I had to look twice to make sure I didn't install them upside down. They are now aimed so low to compensate somewhat but that compromises the distance visibility.
I plugged mine in with no adjustment and got flashed right away. I've turned them down a bit and hasnt happened since. The pattern is fine in my opinion, kind of a "W" when off in the distance and a crisp, clean line at the top. They're leaps and bounds better than the stock lights and I thought stock was perfectly fine for the longest time.