This controller is for car???

[captain harlock]

When I said "they are", I meant in comparison to the phenomenon of (shutting down). Mine shut down( even with a cooling fan) as much as the schulze ( I've never experienced a shutt down with my schulze(s). I did not take the heatsink and cooling fan under consideration, BTY, and that is why I said what I said. Also, I absolutely agree that a heat shrink would not be an effective heat eradicator like a heat sink and I haven't said that in my post, either. Let's say that I misunderstood you, so you were misleaded by my post. Sorry for the trouble, pal. Bye bye.:003: