1. What's the difference between the sleeve and ball bearing fan?
The ball bearing brand was NMB bearing imported from Japan.The warranty for
ball bearing fan is 30,000 hours but sleeve bearing just 10,000 hours.
2. What kind of function can we choose for fan?
Optional function :Auto-restart ,Speed detection,Stoppage Alarm,Waterproof
(IP55 optional), PWM function ,Temperature control etc.
3.What's your MOQ and delivery date ?
Sample lead time:5 working days
Mass production:15 working days for off peak season, 1 month for peak season
Waterproof fans need 1 more week
4. What's your payment terms ?
We accept Payment by T/T, Trade assurance order of alibaba.Accept 50% deposit