Emergency lighting lamp should be arranged in several lines?
2 FireWire, one for charging, one for the usual light (if not bright, not used)1 zero lines1 lines of control (switch line, no switch, also can not).
To tell you that a very ordinary, as usual, used, suddenly after the power automatically lit, at this time the power supply for the battery. In this case, a wire is put into the charging terminal of the battery, a control line is inserted into the switch, a zero line lamp is connected, and a ground wire is connected with the lamp housing!
It's not what you think. It's so simple. You're talking too much. Because there are many emergency ways, such as: usual use, usually not used only for emergency lighting. But in these two ways, how much is the line?!
