1KW Stable Output Heavy Duty Inverter

The HI-1000W Low-Frequency Pure Sine Wave Inverter is built by Foshan Top One Power Technology Co., Ltd.

The HI-1000W is a compact, low-frequency, pure sine wave inverter manufactured by Foshan Top One Power Technology Co., Ltd. The company is based in Foshan, Guangdong, and has been producing power conversion equipment since 2003. The HI-1000W sits at the entry point of the company's HI Series and is designed for those who need a simple, dependable power source, whether for a weekend cabin, a caravan, a small boat, a remote monitoring station, or as a backup for essential household items during blackouts.

The HI-1000W is worth a closer look because it's built around a proper low-frequency toroidal transformer. This allows it to deliver 1,000W of continuous power and handle surge loads up to 3,000W-three times its rated output. This extra capacity is important when starting a refrigerator compressor, small water pump, or power tool, which draw a significant amount of current when starting up. The output is a pure sine wave with low harmonic distortion, so your laptop, router, TV, CPAP machine, and other sensitive electronics will run clean and quiet without the humming or flickering you get from cheaper, modified sine wave units.

The HI-1000W runs on a 24V DC battery system with an input range of 10.5–15 VDC per cell. It accepts AC input from 170–275 VAC with automatic 50/60 Hz frequency detection. It comes with a built-in AC battery charger and an MPPT solar charge controller, which is rated at either 30A or 50A, depending on the configuration. This allows you to connect solar panels directly and let the unit manage charging and power conversion without a separate controller. The transfer time between battery and AC input is under 8 ms, so connected equipment keeps running through grid outages without you noticing.

One notable feature of the HI-1000W is its user-friendly design. The LCD+LED display provides real-time information.

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