I've got hold of a 18w Laing DDC - 1T Plus. I've managed to pwm mod it but was wondering if there was any need to fit a heat sink, I have heard they can run hot

Not sure if will be running flat out. As I got the pwn function working I will have the option to throttle it back. I think the heat sinks do look better than the plastic case and will aid in mounting the pump/res.
I could buy a laser thermometer, would only use it once but it is another gadget, and a man can never own too many gadgets
