1It can be connected to the speed controller. The fan has two speeds, high speed and low speed. The default high speed mode. 2It adopts oblique flow pressurization method, high wind pressure, high air volume 3High efficiency, low energy consumption and low noise. 4Snap design, easy to assemble and disassemble with good sealing 5Suitable for kitchen, study, office, cinema entertainment, workshop, bathroom, internet cafe, chess room, health club, beauty crown, solder, warehouse and computer room
