| 摘要 |
An emergency light socket assembly comprises a permanent wall-mountable housing containing at least one power-supply socket having supply terminals connectable to mains power leads within the wall. The housing further contains a rechargeable battery which is charged up by the mains during periods of mains power and at least one lamp for illuminating exteriorly of the housing. A control circuit automatically applies battery power to the lamp in the absence of mains power. |
