... Fluorescent Tube with a high luminous efficacy of 70Lm/w, a Ra of 85 and a life-span of 18000 hours.Saving 80% energy ... guarantee for ballast.Application: The ballast separated series electronic energy saving lamp is widely used in factories, plazas, courtyards, ... , schools, and others. High lumen maintenance PBT base energy saving equipment ESL lotus real power 85W CFL for industry hospital public ...