When I was updating this page, then coupon price was $84.59 for WANPTEK TPS1203 Lab Bench Power Supply 360W (in Banggood). You can create price alert here, copy coupons and view price history. What is best price?
WANPTEK Lab Bench Power Supply 300W Laboratory Switching Power Supply Unit 30V 10A Adjustable Digital Source 60V 5A Voltage Stabilizer – TPS1203
Latest coupon and price update (UTC):
Banggood ($84.59)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Well, is it a good price anyway? Well, this price is higher than average price ($81.83)
Link: Banggood product page
Price: $84.59
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG589b2e, BG7df812, BG2ed78f, BGET10, BGdefeac, BGCAPITALOS8, BG424324, BGe245a9
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 3 another warehouse/versions!
1. China – WANPTEK TPS305 Lab Bench Power Supply 150W ($56.34)
2. Europe – WANPTEK TPS305 Lab Bench Power Supply 150W [EU] ($52.99)
3. Europe – WANPTEK TPS1203 Lab Bench Power Supply 360W [EU] ($78.99)
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
Price history (for all/most countries) for WANPTEK TPS1203 Lab Bench Power Supply 360W is here.
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)).