You can get 10.5W 5V Portable Solar Panel for $21.59 using coupon code (in Banggood). Check coupons or create price alert down below. You probably want to know what is the best price?
Folded size 180*135*25MM, Output voltage 5V, Output current 0-2A, Weight 313G with box, Color black, Process laminated frosted board (anti-scratch), Name 10.5W Solar Folding Charger, Output interface USB, Conversion rate 19%, Expanded size 560*180MM, Wafer Grade A polysilicon
Latest coupon code price check (UTC time):
Banggood ($21.59)
Banggood warehouse is located in China. But wait a sec… Is it a good price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $21.49) I found coupon for you. Check this out.
Link: Banggood product page
Price without coupon: $23.99
1. ($21.59): BGAMMT03
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG2e45b2, BGCarEle4, BGSCM11, BGCarEle5, BGCAR639, BGLMQ15, BG30c63d
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for 10.5W 5V Portable Solar Panel.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).