The device I received let a regulation from 4.17 to 5.62V (with a lower load) through. an easily accessible potentiometer (part of it visible in the photo) next to the terminals. Features a bright green power LED visible through openings in the case/behind the adjustment knob. There are mounting holes on the bottom. Added small capacitor and choke for smooth output (not required for most applications), 50mm 5V fan (also optional) and attached to DIN bracket with 3M double-sided tape. RTV silicone is applied to hold the protective cover in place on the terminal block.
2-Pack Power Strip Surge Protector With Wall Mounting Holes - Flat Plug Design, 5FT Cord & Multiple Outlets, Overload Surge Protection For Home And Office Use
15 Review
10Ft Wall Mount Power Strip Surge Protector - 9 Widely Spaced Outlets, Flat Plug Extension Cord With Overload Protection For Home Office.
17 Review
6-Outlet Wall Surge Protector, 2 Pack Multi Plug Outlet Extender, Wall Mount Adapter with π 2 USB Charging Ports 2.4 A, 490 Joules, ETL Certified for Home, School, Office - Improved SEO
9 Review
Expand Your Power With The Wall Outlet Extender - Surge Protector Featuring 6 AC Outlets, Shelf, 2 USB And USB C Charging Ports - Black
38 Review