Please check carefully the model(the length and the light color)before purchase. 2. There is protective film on the lampshade, please remove it before use. 3. Please use the original charging cable when you charge the light. 4. The induction mode of the lamp is a light sensing mode, If the environment is bright, it will not work very well. Check the button descriptions of the 3 Color in 1 Lamp Version: 1. Short press the first, the lamp will be on, and the mode is induction mode. In this mode long press the switch button about 2s,the lamp will flash twice, then will be into "always on" mode, the lighting color will not change. Short press again, the lamp will turn off. 2. When the lamp is in the induction mode, short press the switch, the lamp will change the light color(cool white/warm white/nature white). 3. The induction mode only work in the low light environment. Check the button de...