Welcome meassage consulting, please tell me you need item order! EFB0612HA 2wire 4WIRE (two kinds) EFB0612HA -F00 3WIRE EFB0612 HA-R00 2WIRE EFB0612HHA 2wire 4WIRE (two kinds) EFB0612HHA -F00 3WIRE EFB0612HHA -R00 3WIRE EFB0612LA 2wire 4WIRE (two kinds) EFB0612LA -F00 3WIRE EFB0612LA -R00 2WIRE EFB0612MA 2wire 4WIRE (two kinds) EFB0612MA -F00 3WIRE EFB0612MA -R00 3WIRE 12v 60*60*10MM 6cm dual ball bearing cooling fan Part Number Size Voltage Current Power Speed Air Flow Air Pressure Noise CMM CFM mmH2O inH2O dB (A) EFB0612HA 60x60x10 12 0.12 1.44 4200 0.51 18.01 3.35 0.132 33 EFB0612HHA 60x60x10 12 0.18 2.16 4800 0.6 21.19 4.3 0.169 36.5 EFB0612LA 60x60x10 12 0.07 0.84 3000 0.38 13.42 1.65 0.065 24.5 EFB0612MA 60x60x10 12 0.08 0.96 3600 0.44 15.54 2.4 0.094 29