Tel: +86-0755 8618 9612
E-mail: hwonda@giftssuppliers.com

Contact

E-mail:

hwonda@giftssuppliers.com(english and japanese)

Skype: HWONDA168(english and japanese)

Whatsapp:+86 159 1988 8287

Add: Venus Industrial Park, Jian'an Road, Fuyong, Bao'an, Shenzhen, China, 518103

Tel: +86 0755 8618 9612

 

USB Fan Buying Tips

1. opening inspection must be accompanied by a certification, product manuals, fan nameplate there should be a manufacturer name, product type, kind of rated power, rated voltage, power and frequency, and so on.

2. the fan inside the outer packaging and packaging without damage.

3. quality shapes, lines, colors, elegant appearance. Electroplating components for smooth, shiny, no yellow, no rust, peeling and water lines.

4. the film required a hard, smooth, and free of bubbles, scratches, paint film off, threadbare, hanging painted or a mixture of different paints.

5. trim any damage; net agreement closely before and after, no deformation, net wire solder has no loose unsoldering. Floor fan lift and flexible.

Fans with special functions, which should be good.

6. check fan shook his head, speed and timing switch panel tags match. Switching devices keyboard and touch-sensitive, many requiring security, flexibility, good, good contact when power is connected and disconnected. If the key switch, when pressing a key, there should not be two key phenomena, each key is pressed, reset must be flexible.

7. accurate timing devices require regular, rotational flexibility, no jamming or friction Panel, normally open and normally closed position should be controlled and reliable.

8. knob, switch operation sounds crisp and accurate positioning. Tact switch command correct and reliable. But require the stall speed difference obvious, slow-speed should be less than 70%. When sliding along the axial fan blades, whose little shake. Before and after watching the motor clearance, as long as the fan rotor flexible rotation, clearance, the smaller the better. Check network before removing the fan cover, hand blade protrusion in the middle of jerking. Knob, switch operation sounds crisp and accurate positioning. Tact switch command correct and reliable. But require the stall speed difference obvious, slow-speed should be less than 70%. When sliding along the axial fan blades, whose little shake. Before and after watching the motor clearance, as long as the fan rotor flexible rotation, clearance, the smaller the better. Check network before removing the fan cover, hand blade protrusion in the middle of jerking.