Check coupons or create price alert down below. Best price?
AC Output Frequency 50HZ±3HZ / 60HZ±3HZ, LED Indicator Light Normal Green/Fault Red, USB Charging Port 4 Port, Peak Output Power 300W, Rate Output Power 150W, Weight About 400g, AC Output Voltage 220V±15V / 110V±15V, Display LCD display+LED display, Working Temperature -10℃~+50℃, No-load Current Least 0.4A Max 0.75A, Conversion Efficiency >90%, Temperature Protection #ERROR!, Output Waveform Modifined Sine Wave, Certification CE / ISO 9001, DC Input Votage DC 12V, USB Output DC 5V/2.4A*2+2.4A*2
Aliexpress
There’re some similar (or not) items on Aliexpress
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. ($29.74): BGCarEle3
2. ($29.74): BGAUTO22
3. ($32.89): BG00c906
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 and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG81a176, 6GSGIT, 00c906, ADMITAD2212, 2022ACTIESNL, BGCarEle1, 8Couponsde, MVC8SPRING, 8BGwbg2204
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for 150W Car Power Inverter DC 12V To AC 220V 110V.
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)).