It is a combination of an industrial Caged flush mount and a retractable ceiling fan. When switched off, the intrusive fan blades automatically retract and conceal, and visually the unit transforms into a slim, industrial flush mount light. Remote control, timing available. Retractable blades: with 3-retractable acrylic ceiling fan blades, diameter 34 in. when extended, and 17 in. when blades closed, blades will stretch out and put inside automatically Light: this fan required 4-pieces maximum 40-Watt bulbs, E26 base, bulbs are not included High-end remote control allows you to control the light and the fan speed separately, 3 fan speeds, light not dimmable High performance AC motor assures powerful, no noisy High-speed airflow (CFM): 3600 RPM: 122/minute to 226/minute Down rod mounting, 4 in. and 10 in. downrods included Support sloped ceiling mounted, max 15 degrees Space-saving design is ideal for small roomsB40