USE: 1. Long press for 3 seconds to realize the switch function, 2. "M" is the mode button, there are 5 modes inside. A: Mode 1: M1 has 7 modes, press "+/-" to select Press "S" and press "+/-" to adjust the brightness of the light. B: Mode 2: RGB 7-color gradient, press "+/-" to adjust the speed of change, Press "S" and press "+/-" to adjust the brightness of the light. C: Mode 3: Red, green and blue three colors, press "+/-" to adjust the brightness of the light. D: Mode 4: press "+/-" has 5 lighting effects, (shadow, cloudy, sunlight, fluorescent, light bulb) Press "S" and press "+/-" to adjust the brightness of the light. E: Mode 5: press "+/-" can adjust the color temperature (3000K to 6500K) Press "S" and press "+/-" to adjust the brightness of the light. 3. This product can be directly charged with DC5V, and the charging process can be used normally