Designed with real leaf-like curves that circulate air efficiently, Super X1 can run at express speeds that produce powerful gusts of air. Its 6-key remote deliver just the amount of air you desire. Super X7 model has all the features of X1 except the remote. The speed control in X7 is done by toggling the wall switch that is used to power on/off the Superfan. Super X1 & X7 Models have received 5 Star Energy Rating for Best Service Value 6.5.