1200 W” refers to the generator’s rated continuous output power — meaning it can continuously supply up to ~1200 watts of AC power (via its inverter). 
Specifications
Specification
Typical Value / Detail
Rated Output Power
1200 W AC (continuous)
Battery Capacity
~ 1000–1100 Wh (some ~1080 Wh) for smaller units; others may go higher depending on model.
Battery Type
Lithium, often LiFePO₄ (or other lithium-ion chemistry)
AC Output Voltage / Frequency
220–240 V AC at 50 Hz (or 110–120 V AC / 60 Hz on some models)
Inverter Type
Pure Sine Wave inverter — supports sensitive electronics safely
DC / USB / Other Ports
Often includes multiple outputs such as: USB-A ports, USB-C (fast charge), 12 V DC, car cigarette-lighter style port, etc.
Portability (Size / Weight)
Smaller ~1200 W units may weigh ~6–8 kg.
Charging Methods
Recharge via AC mains (grid), solar panels (via solar input / MPPT), or sometimes car charger.
Safety & Protection Features
Battery-management system (BMS), protections against overcharge, over-discharge, over-current, short-circuit, often thermal / temperature protection.
