ATM you can buy OWON SPM SPM6103 Programmable DC Power Supply 300W 0-60V 0-10A for $149.99 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
OWON SPM Programmable DC Power Supply 150W/300W 60V/10A 60V/5A 2.8″ LCD 10mV/1mA Resolution Digital Voltage Regulator Switch SPE3103 – SPM6103 EU Plug 220v
Latest coupon code price check (UTC time):
Banggood ($149.99)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $146.24)
Link: Banggood product page
Price: $149.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
1. (9.9.2024, $125.99): BG66e008
Item: OWON SPM SPM6103 Programmable DC Power Supply 300W 0-60V 0-10A [EU]
Countries: Poland
2. (25.9.2023, $137.99): BGOWONSPM1
Item: OWON SPM SPM6103 Programmable DC Power Supply 300W 0-60V 0-10A
Countries: Germany
Old coupons (from the oldest to the newest): BGTOOS729, BG8FORMULAMX, BGBFDAY8, BGNEWYEAR8, BGSPRING8OFF, BG124578, BGESJY8
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – OWON SPM SPM6103 Programmable DC Power Supply 300W 0-60V 0-10A [EU] ($135.99)
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
Check out price history chart (for all/most countries) for OWON SPM SPM6103 Programmable DC Power Supply 300W 0-60V 0-10A.
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)).