Home Depot offers the Commercial Electric 100-watt Power Inverter, model no. 7821C, for $5. Choose in-store pickup to avoid the $5.99 shipping charge. That's $6 under the lowest total price we could find for a similar inverter elsewhere and the best price we've seen for any such 100W inverter. It features 100W AC output, USB, swivel cigarette plug head, and indication LED.
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