Plastic USB 5V Exhaust Fan 12cm 35 dB or 8cm 37 dB for Quiet Chicken Use

Product power: 12cm model: 1.5W; 8cm model: 2.5W. Product current: 12cm model: 0.3a; 8cm model: 0.5a. Product : 12cm model: 2000±10% (RPM); 8cm model: 3500±10% (RPM). Product noise: 12cm model: 35/38 (db-A); 8cm model: 37/40 (db-A).