Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – iMars SP-B150 150W 19V Solar Panel [EU] (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (179.99 USD): BGAMMT03
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGiMarsSP150, BG10OFFAFF1, BG622CZ1, BG622eu, BG80622A, BG129862, BG8e685c, BG679ef2, BGd535c2, BG16edd0, BG6ac793, BG3e95aa, BGacea86, BG80622de01, BG80622A02, BG80622ES02, BG80622PT02, BGH80622DE02, BG80622A03, BGchollo150, BG80622B01, BH80622DE03, BGba8a31, BG0f200e, BGc4d3e9, BGd5d4bb, BGH80622DE, BG465bdc, BANGGOODSD, BGacfe4f, BGfd1d45, BG5b2920, BGfdbdb8, BG227153, BG80622g01, 00c906, BGe2bd2d, ADMITAD2212, BG8af58d, 2022ACTIESNL, BGCarEle1, BGc4e703, BGSKUH80622A, BG4c98dc, BG2b8cda, MVC8SPRING, BGd8de7e, BG5baf8e, BG663576, BG635726, BG2ce829, BG19c3fd, BG368475, BGb90f02, BGb3f152, BG98138f, BGe942b4, BGdcbfa8, BG885b73, BG60d391, BGQH150W, BGCarEle4, BG47fbea, BG776440, BGe5b850, BGw23261, BG0566ef, BG3a340b, BG1111so, BGfc467d, BG15951a, BGiMars2022, BGCarEle5, BGd8e584, BGef75c7, BGe9d8ae, BGSCM11, BG845979, BGLMQ15, BGCAR639, BGNEWYEAR8, BGb2568c, BGa9497f, BG0c34bf, BG635686, BG91fc21
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – iMars SP-B150 150W 19V Solar Panel [EU] (-3 USD)
Price history and price alert
Here is price history (for all/most countries) for iMars SP-B150 150W 19V Solar Panel.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).