Divided into OFF, ON two operating modes: 1 OFF mode: in this mode, the lights shut down and is in a standby state, as long as gently press the "random color light colorful Aurora table clock" will send out 2 ON mode: the lights bright, colorful Aurora table clock will continue to emit light, 7 color automatic replacement visual and auditory dual wake-up loud alarm tone warning, 7 color collocation gorgeous light flashing prompt LCD ultra clear screen!