1200W Pure Sine Wave Inverter 12V professional introduction and system solution
I. Product core performance
High-efficiency pure sine wave output
1200W continuous power, 3600W peak power (3 seconds), can easily drive motor equipment (such as refrigerators, water pumps, power tools).
Pure sine wave output (THD<3%), compatible with sensitive electronic equipment (such as laptops, medical instruments).
Built-in 15A AC charger
Supports fast power replenishment from AC/generator (220V input), charging efficiency ≥90%, 12V 200Ah battery can be fully charged in 6 hours.
Intelligent charging management to prevent overcharge/overdischarge and extend battery life.
High conversion efficiency and energy-saving design
Conversion efficiency ≥85%
Intelligent temperature control fan (low noise <40dB), automatic derating protection at high temperature.

2. System configuration list
Solar panels 200W monocrystalline silicon (Voc≈22V, Vmp≈18V) 3 pieces Total power 600W
PWM controller, 12V/40A, 1 unit, adapted to 600W input
Battery, 12V 200Ah LiFePO4, 1 set, energy storage 2.4kWh (80% available)
Inverter, 1200W pure sine wave (including 15A charger), 1 unit, peak 3600W
3. Analysis of power generation and consumption
Daily average power generation (4 hours of sunlight):

600W×4h×70% (PWM efficiency) = 1.68kWh
Load support capacity:

Continuous load: 800W (such as refrigerator + TV + lighting) running for 2 hours

Instantaneous load: 2000W electric drill/water pump start (peak 3600W support)

Battery selection:

Economical: 12V 200Ah lead-acid battery (about 2000 cycles).

Long-life type: LiFePO4 battery (6000 cycles).

Expansion plan:

Increase to 4 200W solar panels (controller needs to be upgraded to 60A).

Energy-saving tips:

Prioritize the use of DC 12V devices (such as LED lights, USB chargers).

Use high-power appliances at off-peak times (avoid starting at the same time).

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