Profile: Veton(HK) Technology Co.,Ltd specializes in manufacturing DC brushless fans, AC axial fans, cross flow fans, DC blowers, frameless fans and fan guards. We are an ISO 9001:2008 certified company. DC blowers have the reverse polarity protected. It has the ball bearing and sleeve bearing. It can run on 5V DC,12V DC,24V DC or 48V DC. Special voltage could be customized. DC blowers have different special requirements in frame design. Frameless fan also have the special functions like auto-restarting, thermal speed control, tachometer speed sensor output, lock rotor alarm output, pulse width modulation (PWM) and dust proof units.