... 4recharge/discharge protection LED Emergency power supply for T5 /T8 tubeOVERVIEWMalon emergency light, adopted high efficiency T8/LED fluorescent tube, ... status on power interruption, conflagration, earthquake, indicating precise emergency exit direction, is applicable to hotel, restaurant, shopping ... , device must be ground connected by grounding sign..... LED Emergency power supply for T5 /T8 tube