Something's off there.
From the product description:
3000WProduct Description
Widely used: Under 4 hours of full sunlight, the daily production capacity is 400wh/day. It is very suitable for RVs, caravans, oceans, camping vehicles, electric scooters, golf carts, power wheels, fishing motors, tool trailers, and backup power sources for small sheds.
【 Excellent Performance 】: Single crystal solar panels are made of corrosion-resistant aluminum frames, which can be used for more than ten years and can withstand strong winds (2400Pa) and snow loads (5400Pa). IP65 rated terminal box and 21% high battery efficiency.
[Easy to install]: Pre drilled holes on the back and plug and play cables allow for quick installation
【 Multi protection 】: 20A PWM controller: built-in short circuit, open circuit, and overload protection to ensure safety. And it supports three types of batteries: lithium batteries, lead-acid batteries, and colloidal batteries.
Single listing for multiple items. Second item is 100W panel 24x35cm for $22. The last item is supposed to be 3kW panel 98x54cm. I wouldn't buy from a seller with such messed description.
[0] https://www.aliexpress.us/item/3256806170563774.html