Energy efficient: comes with 500 leds, total power 6W, with high electric energy convert rate, no heat energy consumption. Energy saving and safe for using. This lights is powered by electric. Memory Function: The controller is designed to remember the last setting after cutting off the power. No need to set the light again.Easy to use: directly plug in and unplug it for power on and off 8 modes for choosing: combination, in waves, sequential, slogs , chasing/flash, slow fade, twinkle/flash, and steady on High brightness: 500 LED lights brighten up the happiness atmosphere inside or outside Popularly used for decorative - party, wedding, home, window, bathroom, festival, Holiday, shows, restaurant, hotel, commercial building, shopping center, shopcase, pub, club,concert, hall, cabaret, fashion show, dance, stage.