“These are brilliant. Enough output power for a pi-5 with and LCD display, and a good range of other peripherals. Wide enough input voltage range to work with both 2S and 3S lipo battery packs. Hard to credit how compact it is for it's 40W rating. The heat dissipation, even without additional, head sink is great - even makes it hard to solder to a board. Have used a couple of them and and never had a problem.”