Want to control 30V LED strip with a microcontroller, any help or ideas?
Most micro-controller boards will give you a 0 (LOW) or 5V (HIGH). 5V will turn on the gate of an N channel MOSFET. Even low cost MOSFETS should allow 50-60 Volts from the drain to the source.



IRF520PBF at a common US distributor is 96 cents.