Cooling fan performance parameters are many and varied, in general we need to buy cooling fan with the seller to ask clearly in order not to infringe on their own interests, so that they are in a weak side, now we come together to understand it!

1, the main parameters of the cooling fan: size, voltage, current, power, air volume, static pressure, noise, life, bearing system (double ball bearings, hydraulic bearings, oil bearings), directly related to the cooling performance of the cooling fan is high or low, whether energy-saving, long-life, silent.

2, cooling fan certification: UL, CSA, EN, CE, ROHS, CCC and other certifications (according to their own equipment positioning to choose what certification is required)

3, cooling fan features: soft start function, locking protection, FG speed function, RD alarm function, over-voltage protection, temperature control function, PWM speed function, waterproof function (in harsh environments such as outdoor, humid, dusty places such as waterproof function can be selected, waterproof grade from IP54 ~ IP68 gradually increase) are some of the features can be customized.

4, cooling fan power cord: wiring sequence row, line length, terminals, etc. to understand clearly with their own equipment combination.