Highlights pe: DC OR Non rechargeable 12” fan Shade: black Motor Speed: 2800 RPM for 12” 100% copper A+ High Speed motor Number of Speed Settings: 3, Adjustable with Quiet Operation Number of Blades: 3 High Velocity Fresh air Heavy duty & noiseless Voltage:220v Net: steel safety net Weight: 2 kg long lasting 3- 4 Years minimum Easy operate & Rough use Description On human skin, the airflow from fans increases evaporation which has a cooling effect due to the latent heat of evaporation of water. It also increases heat convection by displacing the warmer air produced by body heat that surrounds the skin. Fans are convenient to carry around, especially folding fans.. For cooling, the fan's direction of rotation should be set so that air is blown downward (Usually counter-clockwise from beneath), unless in rare case in which more breeze would be felt when blowing upward, such as when it's installed in hallway where blades would be so close to the walls. The blades should lead with the upturned side as they spin. The breeze created by a ceiling fan speeds the evaporation of perspiration on human skin, which makes the body's natural cooling mechanism much more efficient. Since the fan works directly on the body, rather than by changing the temperature of the air, during the summer it is a waste of electricity to leave a ceiling fan on when no one is in a room unless there's air conditioning, open windows, or anything that can heat up the room (such as oven) and fan is just to move air around