Usha struker series 1200mm sealing fan is a poor quality of fan I havnt seen before, after use of 1year .the fan move so hardly and it sounds like kich kich. wich was irritatable, usha provide almost same drsigns of fans , they should concentrate on their designs, the customer service of usha is good and they were quick responsive and quikly sloved my sound problem , there was some bairing issues I had visited service point and they sloved my problem , good support from customer service , but the quality coluld b improved and good durability ,