Combined Electronic Ballast and Emergency Lighting Unit for T8 fluorescent lamps and manual testing of the emergency lighting function. It features lightweight one-part emergency lighting unit, simple wiring, no compatibility problems, lamp warm start in normal operation IDC (insulation displacement connection), green charge status display LED and checking the emergency lighting function by interrupting the unswitched phase. It offers an optional test switch, electronically controlled battery charging, deep discharge protection, short-circuit-proof battery connection and polarity reversal protection for battery.