We offer quality fan with square size from 25~120mm, thickness from8~38mm, various voltage design from 3.3v~60v to meet customer's air moving requirement. All of our fans are UL, cul. TUV and CE approved, beside, we can make customize design to fit customer's special fan frame or electric requirement such as lock rotor protection(alarm high, alarm low, fg), tachometer function, temperature control, pwm control, low speed sensor, water and dust proof(IP54/IP55), and RoHS conpliance. Fans are professionally tested for airflow, air pressure preformance, acoustic noise level, reliablity, drop, vibration, shock, etc to ensure the performance is in the accordance with what we put on the specification.