The basic need of existing fan replacement with Atomberg Efficio 1200 mm fan for reducing power consumption, initial observation & feel aesthetically very impressive finishing & manufacturing material, dynamically balanced rotational function on high speed, This is my one week of experience further related to the product. total no of 4 fan replace as per manufacture claim of up to 65 % power saving Actual photograph of fan fitment Refer chart of per day power consumption pattern before fitment of the power-saving fan (19-Nov-2020). Total Average consumption per day : 4- 5 unit Total Average consumption per day of FY 18-19: 4-5 unit Total Average consumption per day of FY 19-20: 7-9 unit Total Average consumption per day of FY 20-21: 9-10 unit ( Up to Nov-20) Keep visiting for further actual perfomance record every quarterly update don't forget !!! Please share your veiw on this Thanks of reading.