All of the fans from Protechnic have passed UL, CUL, CE, CSA, TUV approval. The year output is over 45 million pcs, the leader of brushless DC/AC cooling fan in China.
The material we used is RoHS compliant, all of the DC fans have the function of Reverse Impeller Direction. We can offer DC fan size from 25x25x10mm to 151x55mm, sleeve bearing and ball bearing available, the voltage is from 5V, 12V, 24V or 48V; AC fans from 60x60x30mm to 254x89mm with SPT-2 or Customize Design lead wire, the working voltage and Freq. Is from 220v-240v/50-60HZ and 110v-125v/50-60HZ, various material of frame and impeller can be designed according to diverse demand.