The light-emitting area and the refraction area can be rotated to adjust the refraction angle of the light. *High-quality LED products, high stability, long life, long-range refraction and brightness clearer, no heat radiation, no harm to the skin. *Low power consumption, continuous use of about 30 hours, safe and practical, environmental protection and energy saving. *Innovative technology, using the principle of optical refraction, easily bring the rainbow home. SB power supply: 5V 1A Power consumption: 100mA\/h Battery type: 18650 Battery Wattage 4.44Wh Product material: ABS plastic Battery capacity. 1200mA Number of batteries: 1 Lithium content: 0.71g Battery weight: 37g Number of battery cells 1 Products include: shell rainbow light, USB data cable, Chinese and English manual Product size: 1311.85.4CM Charging time: 3-4 hours Use time: about 12 hours Indicator light: red light (charging), green light on (full charge) Instructions for use Operation guide 1: Rotate the angle of the light so that the light is projected to the reflective surface 2: Rotate the reflective surface to project rainbow light onto the wallLight mode MODE-A: Slow rainbow light gradient projection mode MODE-B: Rainbow light projection mode The A key has no timing function, The rainbow function corresponding to the B button will automatically turn off after 2 hours of power on \