For the electronics tinkerers out there, this ZK-4KX boost power module is a handy little tool. It can take an input voltage from 5V to 30V and boost it up to an adjustable output from 0.5V to 30V. The output current can handle up to 3A continuously, or 4A if you add some extra heat sinking. It's got a bunch of smart features like input reverse polarity protection (so you won't fry it if you hook it up backward), output anti-backflow (handy for charging batteries), and programmable limits for undervoltage, overvoltage, overcurrent, and temperature. The small LCD screen shows input/output voltage, current, power, and more. It's housed in an ABS and aluminum case measuring about 79x43x26mm, with a panel cut-out size of roughly 71x39mm. It's great for DIY projects, lab power supplies, or charging setups. Just note that it's a boost converter only (increases voltage), not a buck converter. If you need a versatile, programmable DC-DC module with safety features, this is a solid choice for your workbench.
