Emerson Liebert PSA 1500VA. Output power capacity (VA): 1500 VA, Output power: 900 W, Power supply input frequency: 50/60 Hz. Cable length: 1.8 m. Battery type: VRLA, Battery recharge time: 6 h, Typical backup time at half load: 12 min. Colour of product: Black. Weight: 12.6 kg