Features: 1) DC brushless fan and AC axial fan 2) Vlotage: 5V, 12V, 24V, 48V, 110V, 220V 3) best price and quality Features: 1) DC brushless fan and AC axial fan2) Vlotage: 5V, 12V, 24V, 48V, 110V, 220V3) High efficiency and low noise4) Large volume flow and long life expectancy5) CE UL TUV ROHS6) Best price and qualityPacking:Carton