Dimension: 120x120x23mm Rated Voltage:12V Dimension:120x120x25mm Rated Voltage:12V/24V Dimension:120x120x32mm Rated Voltage:12V/24V/48V Dimension:120x120x38mm Rated Voltage:12V/24V/48V Impeller Material : PBT UL94V-0 Reinforced Plastic Housing Material : PBT UL94V-0 Reinforced Plastic Sleeve Bearing (Ball Bearing Available) Motor Protection optional: Resistance Protected, Auto-start, Thermal Speed Control, Alarm Output, Tachometer Output CE, GS, TUV, CSA, UL, SONY GP, SAMSUNG EP & ROHS compliance Origin China Packaging 40pcs/ctn Package Size 46.0 x 27.5 x 29.5 Centimeters Package Weight 12.6 Grams Delivery lead time 15 days