The Mercury 1.2kva-Complete Inverter System. Ideal for one bedroom flat, private office and small shops. Example use case:
This system will keep the above items (total 150 watts) powered for approximately 4 to 5 hours or more depending on usage.

1.2kva Inverter Specification
Model: 1.2KVA
Voltage: 230VAC
Capacity: 1200VA/720W
Voltage Range: 170-280VAC (UPS Mode) 90-280 VAC (INV Mode)
Voltage Regulation(Battery Mode): 230VAC +/-10%
Transfer Time: 20 ms Typical
Waveform: Modified Sine Wave
Battery Voltage: 12VDC
Floating Charge Voltage: 13.75VDC +-0.25
Charge Current: 10/20A
Dimention: 330 x 227.8 x 92.5
Net Weight (Kgs): 2.6
Gross Weight (Kgs): 3.1
100ah Deep Cycle Battery Specification: 20 Hour Rate 100AH, 10 Hour Rate 92AH, 5 Hour Rate 80AH
Overvoltage Restoration: 41AH
Internal Resistance Fully Charged Battery 4.5m
Self Discharge: Capacity after 3 Month Storage 91%, Capacity after 6 Month Storage 81%, Capacity after 12 Month Storage 60%
Max Discharge Current: 800A (5S)
Terminal M3
Cycle Initial Charging Less than 30A
Float Voltage: 14.4 ~ 14.7V/77°F (25°C)
Voltage 13.5 ~ 13.8V/77°F (25°C)
Dimension (WxDxH) mm 208 X 407 X 174