The Ceiling Fan 12 volt DC operated..Description Remarks1 Type of motor : BLDC Motor YES2 Rated voltage : 12 volt YES3 Operating Voltage range : 9 volt to 15 volt YES4 Blade diameter : 1200 mm YES5 Blade : Three leaves Aluminum Power Coated YES6 Power Consumption : Maximum 150 CMM (cubic meter per minute) 180 CMM8 Bearings : Two nos. ball bearings ZZ Ball Bearing9 Reverse polarity protection: fan should not work with reverse polarity. YES10 Speed: 3 Electrically controlled regulator:Rating Voltage at 12volt/ Speed : 3/4/5 Electrically controlled2. Power consumption at entire operating voltage range: