Thermal Heatsink Design Video Tutorial May 12, 2019 03:53 Updated An excellent video tutorial from the Electronics Engineering Video Blog explaining how to cool electronic components. Related articles How do I determine what size of heat sink I need? (Includes heat sink calculator) How do I fasten the LED to the heat sink? Tips for selecting and using a heat sink for high power LEDs. How many LEDs can I power using a BuckPuck or PowerPuck driver? Do I really need to use a heat sink?