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.
Go down and check coupons out. Remember to check price history if it is available. What is the best price?
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.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($29.74): BGCarEle3
2. ($29.74): BGAUTO22
3. ($32.89): BG00c906
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG81a176, 6GSGIT, 00c906, ADMITAD2212, 2022ACTIESNL, BGCarEle1, 8Couponsde, MVC8SPRING, 8BGwbg2204
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for 150W Car Power Inverter DC 12V To AC 220V 110V? There we go. The lowest price was: $20.99.
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)).