headlight switching

Like most people, looking to upgrade my headlight. My friend has suggested this, but after reading on here, it doesn't seem like a simple switch is even possible…...

Hey fellas, been a lurker for the last few months as i refurb the 82 XS400 i picked up for 500 bucks. :) I have replaced fuse box, brakes, all bulbs, tires, tubes, cleaned and rebuilt carbs, painted everything. Essentially, everything i could think of. :) Now, i'm down to working out the...