Max Output Power: , Output Plug: XT90 Plug, 720W(100-150V AC Input), Model: SP3060, Output: DC 20-30V/60A, Input: 100V-240V /50-60Hz/12A, 1800W(150-240V AC Input).
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.
Updated:
Banggood
Warehouse in China.
Link: ISDT SP3060 20V-30V 1800W 60A RC Power Supply
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons:
1. First page
2. Second page
Price history and price alert
Do you need price history chart (for all/most countries) for ISDT SP3060 20V-30V 1800W 60A RC Power Supply? There we go. The lowest price was: $227.8.
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)).