Thank you so much for purchasing our product. VS-25F combines optics electronics and other high-end technology specially designed for KTV and DISCO. According to music it operates built-in programs. With smokes it forms light-curtain-wall and colorful spatial effect and build a nice dream world for you. CAUTION Make sure that the best temperature range is: 20~35C. Never use laser direct to people especially for eyes in case of any harm. Make sure that the available voltage is between AC110V~240V and make sure the ground cable is always reliable. Please don’t turn on or off frequently in case of reducing the normal lifespan of laser. Don’t touch the laser diode mirror in case affecting the lighting effect. Don’t disassemble lighting fixture if there’s any problem please ask a qualified engineer inspect the equipment before operation again. ATTENTION: Man-made damage and tearing-up the label will be out of our warranty so please read carefully. Key Function: MODE MODE selection key UP In A-00 mode it’s motor-speed-setting key; in d001 mode it’s address + key. DOWN In A-00 mode it’s color-setting key; in d001 mode it’s address - key. In d001 mode press UP it will automatically add; press DOWN it automatically decrease. When press in 3 seconds the digital tube automatically becomes dark and the value and mode can be saved automatically; the digital tube close automatically in 10 second. The digital closes press any button to rework digital tube.