Emerson GXT2-1500RT230. Output power capacity (VA): 1500 VA, Output power: 1050 W, Power supply input frequency: 40 - 70 Hz. Battery type: VRLA, Battery recharge time: 5 h, Typical backup time at half load: 20 min. Weight: 23200 g. Operating temperature range (T-T): 0 - 40 °C, Operating altitude: 0 - 3000 m. Certification: EN50091-1-1, CE