Panasonic DC Inverter Desk Electric Fan F-409DS Major Benefits/ Features: ENERGY SAVINGS: DC Motor that helps saves 50% of Electricity compare to AC Fan models ROTARY DIAL KNOB: Smooth, continuous control dial to generate speed DC SOCKET ADAPTER More Power, Less Electricity Cost Blade Material/Size: PP/40 Wattage Max: 30 Watts RPM Maximum: 1256 Air Delivery: (M3/Min/Max.): 87 Product Weight: 4.0Kgs. Maximum Center Height: 419mm Height Adjsutment: NA Stroke: NA Switch Type: Rotary Potentiometer Vertical Angle Adjustment: Free Neck Free Oscilation: 2Way NOTE ON WARRANTY POLICY: 1yr Limited Warranty on some parts and services.. No warranty on accessories. If defective, please bring Sales Invoice and product to the nearest authorized service center.