You can create price alert here, copy coupons and view price history. Do you want to know what the best price is?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Short Circuit Current ≥ 560ma, Open Circuit Voltage ≥ 7.2v, Cell Conversion Efficiency ≥ 24%, Minimum Output Power ≥ 3.5w, Standard Working Voltage ≥ 6v, Standard Working Current ≥ 540ma
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($18.05): 8BGwbg2204
2. ($18.25): 2203ActiesNL
3. ($18.44): BG00c906
paste coupon code in your cart and click Apply 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): 00c906, ADMITAD2212, Terence, Tabby20
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for 5V High Efficiency Waterproof Solar Panel is here.
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)).