A safe protecting device for a lamp bulb with pins and conductors connected directly, wherein, two pins of the lamp bulb have exposed sections to be welded together with peeled and naked sections of the conductors; a protecting sheath is provided for assembling the pins of the lamp bulb and the peeled...http://www.google.com/patents/US6504099?utm_source=gb-gplus-sharePatent US6504099 - Safe protecting device for lamp bulbs with pins and conductors connected directly