Get coupons, create price alert or check price history out! You probably want to know what is the best price?
Solar panel power: 28W, Conversion rate: > 23%, Quantity: 4 PCS, USB output: 5V, up to 2.4A per port and 4A total under direct sunlight
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Do you need price history chart (for all/most countries) for Zanflare SH54 28W Solar Charger? There we go.
Price records source(s): Gearbest
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)).