3W ones run cooler as they are capable of dissapating more heat - the ones I use are physically the same size as 2W but they do seem to run cooler?

Marty I think you may be thinking of the wrong ones.

Thanks Mike.
That would be awesome re. sending me some but you really don't have to. I'm sure I can get some online somewhere.

I assume that the increased wattage, of the ones you have installed, is for a lower heat generation?
Because 270 ohms is 270 ohms regardless of the wattage, right?