So I'm looking at these on eBay. My question that I'm sure has been answered though I haven't been able to find is about the amp rating. The green one seems to be good only to 2 amps, while the red says 3 amps. How important is this?
LM2596 DC Step-Down Adjustable Converter Power Module | eBay
The green one say max 3 amps with heat sink and that is for continuous use. With our intermittent use we don't need the heat sink. I have used at least 20 of the green ones in my mods, mostly because they are the smallest. Have not blown one yet.