LED lighting devices experience significant energy loss during AC-DC power conversion, electro-optical conversion (electroluminescence), and wavelength conversion. Unlike conventional technologies, in LEDs, all energy losses in the light emitting process are expelled as heat. This presents a major engineering challenge where more than half of the power input is converted...
Managing the heat generated by the components is very important in the design of electronic systems. High-power components generate more heat and can cause the system to malfunction. Two different techniques, active cooling and passive cooling, are applied to protect heat generating systems.