TANLUX LED Emergency Lights with Battery Backup The "TANLUX" brand is a factory specializing in emergency ligting and emergency exit sign for more than 10 years and has become one of the most popular brands in the US market. TANLUX brand will provide you with the best quality products and services. Black Emergency lights Product Features: Material: Engineering-grade and injection-molded plastic Color: Black Voltage: 120/277 VAC operation Size: W13”*D3.5''*H4.7'' Light Scource: 2*1.2 watt, 12pcs SMD 2835 per head Duration Time: 90 mintutes Application Scenarios: commercial and industrial lighting, hallway, corridor, hospital, apartments, churches, shopping malls, supermarkets, schools, hotel, restaurant, warehouses etc Easy installation Battery connector Test button and indicator Ultra bright LED head