Speed regulation and intelligent control
DC: Supports PWM+temperature control linkage, can accurately adjust air volume according to thermal load, suitable for scenarios such as servers, new energy charging stations, medical equipment, etc. that require high heat dissipation accuracy.
AC: Fixed speed, can only "run at full speed" or "stop", suitable for industrial machinery, cooling towers and other occasions with stable thermal loads.
Noise and Vibration
DC: Brushless motor+dynamic balance optimization (G2.5 level), low-speed operation is quieter, suitable for laptops, smart homes, and medical equipment.
AC: The motor structure and fixed speed result in higher vibration and noise, making it suitable for noise insensitive scenarios such as factory workshops and large HVAC systems.
Lifespan and environmental adaptability
DC: Brushless design with minimal wear and tear, double ball bearing MTBF up to 100000 hours, high and low temperature resistance (-40 ℃~85 ℃), optional high protection IP65- IP68.
AC: Insulation is prone to aging, and its lifespan is shortened by about 50% in high humidity/dust environments, making it more suitable for industrial scenarios with dry and fixed working conditions.
Cost and Total Cost of Ownership (TCO)
DC: High procurement price, but long-term energy saving and long lifespan, lower TCO, suitable for long-term operation equipment (such as data centers).
AC: Low purchase price (30% -50% cheaper than DC), simple installation and maintenance, suitable for universal cooling scenarios with one-time investment and fixed speed.