Cooling

CFM stands for cubic feet per minute. CFM is a volumetric unit of flow. CFM represents the maximum amount of air that a fan can move at maximum speed and without any restrictions. CFM is related to the fan’s motor (rotational speed), blade length, blade pitch and shape.

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.