| 摘要 |
A light bulbs (LT) adapter device (PA), comprising a threaded seat (CN2) for inserting and electrically connecting the light bulb (LT), further comprising an emergency electronic ballast (A2), which is connected to the supply terminals (T1) of said light bulb (LT), as well as to one or more emergency lighting sources (S2), to least one battery (B1) and to a first electrical connector (T2) of a first electrical connection (CN1); said emergency electronic ballast (A2) being series-connected with a ballast of said light bulb (LT) and being able to control both the battery (B1) charging, by using the electric current flowing through said light bulb (LT), and said emergency lighting sources (S2). |
