3 Kinds of Working Modes: the power supply is a switch, the switching power supply changes the working mode at for time, there are 3 working modes: 1 light on, 2 work, 3 + lights work together Multi-function: 22-in-1 design, it is not only the LED light of the E27 lamp for head, but also the fan, AC 85V-265V wide voltage Enjoy Cool in: built-in 3 fan are perfect for kids room and nursery, also can be used in living room,, bedroom, kitchen, study, to keep you cool on hot days Easy Installation: flush mount, just screw into any e27 lamp holder, no wiring, no professional electrician required, fast and efficient installation Compact & Adjustable: 10.2 inches in diameter, 4.7 inches in height, built-in 30w LED lights, soft wind and low noise, adjustable in three gears