Aliexpress
Click here… to search for 60HZ Solar Pure Sine Wave Power Inverter 1500W 12V To 220V on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (78.53 USD): BGCarEle4
(CouponsFromChina.com tip: 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
Old coupons (from the oldest to the newest): BGfc41d0, BG6e27c5, BG8ReviTrage, Cuponation9, 9OFFSUMMER
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for 60HZ Solar Pure Sine Wave Power Inverter 1500W 12V To 220V.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).