I have some imported halogen light bulbs (12v 20W) that have no glass on the front like the ones they sell in this country. Is there a problem with that?
If so, can they still be used in sealed spotlights, with a glass cover on the front, like the ones for bathrooms?
If so, can they still be used in sealed spotlights, with a glass cover on the front, like the ones for bathrooms?