BELTTT
An inverter turns 12V battery power into household-style AC power so plug-in devices can run away from shore power. If you only use 12V devices or always have shore power, you may not need one.
Travelers who want to run plug-in devices from a vehicle or house battery.
BELTTT 2000W Pure Sine Wave Inverter 12V DC to 120V AC, 4000W Surge (ASIN B0DCJPTVMW). Amazon's page has the current price, specs and reviews.
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Check current Amazon listing (ASIN B0DCJPTVMW).
Fine print: The Dude has not personally tested this product. The details on this page come from the Amazon listing and can change; check the listing for the current specs, price and availability.