You can get 1500W Switching Power Supply 68V for $90.89 using coupon code (in Banggood). Go down and check coupons out. Remember to check price history if it is available. What is best price?
Latest price update (UTC time):
1200W /1500W High Power Switching Power Supply 68V Adjustable Full Power Voltage Regulation – 1500w
Banggood ($90.89)
Banggood warehouse is located in China. What about the price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $86.49) I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Price without coupon: $100.99
1. ($90.89): BGAMMT03
coupon code has to be applied in shop’s 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
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for 1500W Switching Power Supply 68V? 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)).