The EV series is a compact architectural emergency lighting unit designed for fast wall mount installation and reliable service. the EV series has a flame rated, UV stable thermoplastic housing and a lightly textured white finish. integral LED based lamp heads are fully adjustable. unit provides a full 90 min of emergency lighting. includes micro-controlled pulse charger and nickel metal hydride (NiMH) battery. the EV accepts 120/277 VAC input at 60 Hz and optional 220 to 240 VAC input at 50 to 60 Hz with self-diagnostics option.