You can get AC to DC for 85.99 USD with coupon (from Banggood). Basically copy coupon, view price history or create e-mail price alert. Best price?
Latest coupon and price update (UTC):
Banggood (85.99 USD)
Banggood warehouse is located in China. I have no active coupons for you right now. Is it good price? According to my database, the average price is 89.49 USD and current price is 85.99 USD, so it’s probably a good price!
Link: Banggood product page
Price: 85.99 USD
Old coupons (from the oldest to the newest): BG6fe2eb, BGf85728, BG7916ce, BGAUGUST8, BG3dd746, BGCAPITALOS8, BG8FORMULAMX, BGBFDAY8
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
Click here… to search for RIDEN RK6006-C 60V 6A AC to DC Step Down Voltage Bench on Aliexpress
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for RIDEN RK6006-C 60V 6A AC to DC Step Down Voltage Bench? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).