Model: PIA040H12QSize: 40*40*28mmVoltage: 12VCurrent: 1.70APower: 20.4WSpeed: 25000 RPMNoise: 50.9 dBABearing: Double BallLead: 4 lines, with speed measurement, PWM function. Line length 6 sides, 2 lines 3 lines can be changedLife: More than 50,000 hours