$35.94 – 2x Solar Panel, 1x Manual, 1x 10-IN-1 Charging Line, 4x Carabiner, 1x Cable, 1x 2-IN-1 Cable, 1x 60A/100A Solar Controller(optional), 1x Alligator Clip, 8x Suction Cup, 1x Car Charger.
The coupon price for 40W 12V Solar Panel Kit 100A is $35.94 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Latest price update (UTC time):
Banggood ($35.94)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Is it expensive? From what I can see this price is higher than average price ($31.93).
Link: Banggood product page
Price: $35.94
Additional Banggood coupons: first page and second page
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BG8f6134, Cuponation9, BG51943, BG8ReviTrage, BGcoupon8off, BGGutscheine, BG00c906, BG8OFFCOUPON, BG2d0ecd, BG6f4654, TTBLACK5, BGc5d4b1, BG589b2e, BGET10, BG8FORMULAMX, BGe245a9
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for 40W 12V Solar Panel Kit 100A is here. The lowest price was: $27.19.
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)).