| 摘要 |
A keyed lamp assembly includes an electric lamp and a lamp base secured to the electric lamp for electrical connection to the lamp and for mounting the lamp in a keyed lamp fixture. The lamp base includes a lamp base body and at least one fixed key on the lamp base body. The lamp assembly further includes a movable key on a key carrier that is movable to two or more different positions on the lamp base body during manufacturing. The key carrier is attached to the lamp base body in one of the positions such that the fixed and movable keys provide variable keying of the lamp assembly. The lamp base body and the key carrier may have interengaging ratchet elements for defining discrete position of the movable key. |
