Buck Converter w/ LED Display v2 Copy Link
Buck Converter w/ LED Display commonly seen on eBay
5/27/19 UPDATE - There are 2 variants of this board on ebay now that look similar but are slightly different sizes. This version has 1 button on the right of the display.
As with all components, it is important to print your deisng to scale to verify all hole placements work your your components before starting your design.