I’m looking for a recommendation on a heatsink for a lighting application. I have a 10" x 10" grid of LEDs with a total DC wattage of about 430W. As i understand from other discussions about 40-50% of that power will be thermal power (175W-200W). It’s a natural convection application with an ambient of 35C while trying to keep LEDs at a Tc of 65C or better (if possible). I’m looking for a recommendation on the type (extruded, folded fin etc.) and heatsink size.