Why is my mosfet getting so hot?
I'm following the basics of this instructable
which is using an arduino to control an RGB led strip. I am using a typical 300 count smd 5050 light strip powered with an old laptop 12v 5a adapter. I'm using 3 irf530n mosfets but only the one attached to the red leds get hot after just a few minutes of being on full power. I'm wondering if there's anything about that mosfet that would be causing it to only heat up on the red line. I've tried replacing the mosfet and swapping them with the other colors and still it's only the mosfet that's connected to the red lights that gets hot. I've tried measuring the current across the mosfet and it's about .6a for the green and blue, and about .8a for the red. I'm pretty new at this, so if there's anything else I can test I'll try to do. Thanks for any help you can provide.