Modified Sine Wave Inverter With Charger DC12V to AC220V Off-Grid Power Inverter Charger for Home Backup

The SDA-D4000A is a reliable modified sine wave power inverter built for high cost performance. It transforms DC 12V battery power into a steady AC 220V output to run domestic appliances and off-grid electrical loads. Equipped with MCU energy-saving control and a soft-start circuit design, it greatly reduces the impact generated when loads start up. It is an ideal solution for home backup power and outdoor power supply applications.

1. Modified sine wave output delivers stable performance and supports a wide range of daily household electrical appliances.
2. Low-noise cooling fan with aerospace-grade design runs quietly with low power consumption.
3. Built-in advanced MCU intelligent control system boosts energy conversion efficiency.
4. Supports automatic power-on function for convenient unattended operation.
5. High-definition digital LED display for real-time monitoring of output power and battery SOC status.
6. Low battery protection: buzzer alarm and automatic cut-off with warning light; restart by toggling the power switch.
7. Overload and short-circuit protection: power output cuts off automatically with a warning prompt; reset via the power switch after the fault is removed.
8. Overheat protection: the unit shuts down automatically once the internal temperature exceeds the safe limit.
9. Anti-interference design, full protection circuits and soft-start circuit make operation simple and reliable.
10. Soft-start design: voltage rises gradually at startup to prevent equipment crash, suppresses instantaneous load surge, and recovers quickly after voltage fluctuation.
11. Comes with a 5V 1A USB port for charging small electronic devices.

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