Psu just arrived.
Sucker is rated for 50 amps and 600 watts !
Big cooling fan.
Other than that, identical type to the he3ed one.
£15 delivered :-)
Plenty of mounting holes too.
inline switch not getting here till monday most likely. So until I can make the switchable power cable. I'll leave it alone :-)
Uk based supplier - so actually send backable of it dies.
Feels really solid.

Looks like it could easily power a 400mm heatpad too, hmm. lol
So if anyones looking to buy a psu for a 3d printer build - look at led lighting psu's NOT 3d printer psu's. Same thing but much better prices and specifications :-)