Specification Part No. 8cm 12cm 14cm 25cm Outline Dimension (mm) 80x80x25 120x120x25 140x140x25 250x250x30 Rated Voltage DC 12V DC 12V DC 12V DC 12V Starting Voltage DC 7V DC 7V DC 7V DC 7V Rated Current (Max. ±10%) 0.26A 0.22A 0.35A 0.32A Power Consumption (Max. ±10%) 3.12W 2.64W 4.2W 3.84W Speed (Mn./Max.) RPM±10% 2000-3000 800-1500 800-1500 400-800 Airflow (Min./Max.) CFM 26.19-39.29 34.25-64.23 31.25-58.60 47.95-95.90 Static Pressure (Min,/Max.) mm-H2O 2.24/3.36 0.97/1.82 1.32/2.48 1.35/2.70 Noise Level (Min./Max.) dB(A) 23.80/35.70 14.88/27.90 17.06/32.06 16.43/32.86 Life 30000Hrs 25°C No. of Blade 7 11 11 7   Rotating Direction Counterclockwise Materials/Parts Plastic Material/Blade PC Gloss Bearing Sleeve Bearing LED 4(256Color) 4(256Color) 4(256Color) 5(256Color) Controller VR Speed Controller,LED On/Off, LED Set Weight 67g 108g 136g 200g