Bicycle Tail Light USB Rechargeable Backpack Helmet Outdoor Warning Light

Material: ABS, power: 3W, brightness: 30lm. Battery: 300mAh lithium battery, charging time: 4-5 h, standby time: 12 to 24 h. 8 speed adjustable, 4 brightness can be adjusted, it can display in simplified Chinese, traditional Chinese, English, Japanese, Russian, and most European countries, does not support Korean. 9 kinds of display mode: up, down, left, right, animation, snow, scroll, laser, fixed, entertaining diversions, flashing. Display words: fixed display 4 Chinese characters, rolling can be 4096 characters (1 Chinese 16 characters, 1 English eight characters)