https://amzn.to/4idKb69 300W BESTEK Car Power Inverter DC 12V to AC 110V w/ 2 AC Outlets & Dual USB Ports (MRI3011BU) on sale for $26.99 - $7.56 (28%) off when you apply promo code GD22MNR2 on the checkout page = $19.43. Shipping is free w/ Prime or on $35+ orders.