Just check coupons out (with price alert and history). Best price?
USB Output voltage DC5V /2.1A Max, Output Voltage 220V-240V AC, Type DC/AC Inverters, Output waveform Modified sine wave, Continuous Power 3000W, Peak Power 6000W, Input Voltage 12V DC
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Pure Sine Wave Inverter 1600W 2200W 3000W DC12V/24V To AC 110V 220V Voltage Converter Power Car Micro Inverter Solar Inverter | $58.27 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($61.96): BG845979
2. ($64.14): BGSCM11
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): BGffa6ea, 8BGwbg2204, BG50offS3, BGAUTO22, BGdcbfa8, DealBGimpact, Cuponation9, 9OFFSUMMER, BGCarEle4, BGCarEle5
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Do you need price history chart (for all/most countries) for 3000W Solar Power Inverter DC12V To 240V? There we go.
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)).