Durable Heavy Duty High CFM 12v Electric Curved S Blade 16" Radiator Cooling Fan S Blade Fan 12 volt high performance reversible electric cooling fan Measuring approximately 16 x 16 1/2 x 3 Fan is 2500 Tested Cfm, 12 Volt, 6.5-7.5 amp, 160 Watt Ideal for OEM or high performance applications. This fan is very powerful,light weight,and efficient and has a computer balanced blade for smoother operation