Are you a LED diode expert?

[effexxess]

I have a technical question about thermal management with mid-power LED diodes like Samsung LM301H.

Do you use thermal vias on the PC board anymore? Either under the LED diode footprint or even around the footprint?

I was reading about this on a ten year old application note from Cree called "Optimizing PCB Thermal Performance for XLamp® XQ & XH Family LEDs"

Is this still a thing they do?

 

[Kamisama]

These new chips dont overheat at all, u can touch them after hours of using. The only thing that generate heat is driver and that can be placed outside of tent if so.

Its good to have a fan above canopy, if u ve led close to canopy. 20-40cm based on the coverage u need 1.2-1.6m for the 600w ones.