I've not had great luck with Quadratec, they are just a drop-shipping website. Last time I tried to order a big item from them it was cancelled after months of waiting without explanation. I'm willing to risk small things, like trail mirrors, but that's about it.
For something like headlights, I would go with a place that just does lighting, like Baja Designs, KC, or Diode Dynamics. Who knows what quality LEDs are in those no-name housings.