Option B is the correct way.

About the bubls, if they break you are OK, but if they do not, that is where you could have some probs.

Just take steps to ensure the "wire" does not give out.
dusto2k3 Reviewed by dusto2k3 on . FIRE HAZARD?! Here's a question of mine that's been itching to get answered: As shown in the first drawing, these two 400w metal halides bulbs are suspended on a metal wire driven into the wall by only a screw on each side. And let's just say, the metal wire that is holding the bulbs gave in, dropping the two bare* bulbs and they crack or explode, what are the chances of this causing a FIRE? *notice that the bulbs are not on reflectors or anything;they're just bulbs that are screwed into their Rating: 5