Sorry for the late response.
My headlights look very similar to the first photo.
One of my mates replaced the headlights bulbs on his Mercedes with a $20 bulb, and it works perfectly according him.
I'm a little concerned as well about installation. My car has condensation and a lot of moisture inside one of the brake lights (factory defect so I don't have to pay for that repair), but they apparently have to replace parts to make sure it's vacuum tight or something.
I can't imagine the same thing happening to my headlights!