... Light Luminous Efficiency: 110LM/W, perfect performance;7. High power LED source, equivalent to 2.5~4 times traditional lights ... applications: highway and railway tunnels, also can be used for project lighting such as in workshop, warehouse, supermarket, exhibition ... , etc;15. CE & RoHS certificates are all approval for this light. Related Parameters: Input VoltageAC85V~265VFrequency Range50Hz~60HzTotal ...