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Power Inverters

Power inverters convert DC from a vehicle battery or solar bank into 230V AC for running tools, chargers, and equipment away from mains supply. Choose modified sine wave for basic loads — drills, grinders, resistive heaters — or pure sine wave if you're powering sensitive electronics, variable-speed tools, or anything with a microprocessor that won't tolerate a stepped waveform.

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Modified sine wave inverters output a stepped approximation of AC. They're lighter, cheaper, and fine for universal motors, incandescent lights, and most battery chargers. They'll damage some laptop power bricks, run certain pumps and fans noisily, and won't start every motor reliably — check the tool's manual if it specifies sine wave input.

Pure sine wave inverters produce a clean waveform identical to mains supply. Use them for variable-speed drills, medical kit, audio gear, microwave ovens, or anything with a switching power supply. They cost more and run slightly less efficient under light load, but they'll start and run every AC device as intended.

Wattage is continuous rating. Most inverters tolerate a brief surge at startup — typically double the continuous figure for a second or two — but don't rely on that to run an undersized unit. Add up the nameplate watts of everything you'll run simultaneously, then pick the next size up. A 1000W inverter will not run a 900W load all day without cooking itself. Sealey units include a 24V to 12V DC converter if you need to step down between battery banks.