Import 300w Off Grid Solar Power Inverter — Buy in wholesale FOB from Supplier in China

This 300W off-grid solar power inverter from Zhejiang Pingqi Electric converts DC input from battery banks or solar arrays into pure sine wave AC output at 110V or 220V, depending on configuration. The unit accepts nominal 12V or 24V DC input, with operating voltage ranges of 10.5-15VDC for 12V systems and 21-30VDC for 24V systems. Output waveform is pure sine wave, with a surge power capacity of 600W for 3 seconds into resistive loads and 120-150% rated power for 3 minutes. Efficiency is rated above 90%, with a USB port providing 5V at 2.1A for device charging. The model designation is PQ-300P, with optional remote control functionality available.

The inverter construction uses PCB assembly with aluminum heat sink for thermal management, copper windings for the power stage, and electrolytic capacitors for DC link energy storage. Protection features include low voltage alarm and shutdown, over voltage shutdown, overload shutdown with restart recovery, over-temperature automatic shutdown and recovery, output short circuit shutdown with restart, DC input reverse polarity protection via fuse, and earth fault shutdown for load electrical leakage. Soft start is implemented with a 3-5 Q5 second ramp. These features align with typical expectations for entry-level to mid-range off-grid inverters serving rural electrification and backup power markets.

Applications include rural electrification projects, emergency backup systems, recreational vehicles, marine vessels, and telecom installations in areas without grid infrastructure. The OEM brand service and customizable DC input voltage range suggest the manufacturer targets distributor and system integrator channels rather than direct retail. Buyers should confirm whether CE and RoHS certification documentation is available for the specific unit ordered, as the source notes certified units are available but does not confirm standard inclusion. The 300W continuous rating suits small appliance loads, lighting circuits, and battery charging subsystems within mixed AC/DC off-grid architectures.

Zhejiang Pingqi Electric Co., Ltd. is based in China, with the specific address listed as a generic China location with postal code 632500. The supplier holds a Harbor trust tier on the platform, indicating fundamental verification. Response metrics show 0.00% response rate and zero average response hours, which indicates limited or no engagement through platform inquiry channels at the time of listing. No additional corporate history, factory size, employee count, or annual revenue figures are provided in the source profile.

The supplier offers OEM brand service and custom DC input voltage range configuration, suggesting a business model oriented toward B2B customisation and white-label distribution. The product line extends from 300W to 4000W according to source description, indicating a focused inverter portfolio rather than diversified power electronics manufacturing. Buyers should independently verify factory existence through video inspection, request business license documentation, and confirm whether Zhejiang Pingqi Electric operates manufacturing facilities or functions as a trading company. No client references, export experience, or certification body relationships are disclosed in the available data.