• It's small and light, can be easily attach to the rear of the bike, helmet, backpack, etc.

• 4 modes adjustable: half brightness/fast flashing/slow flashing/full brightness

• IP44 waterproof level, can be used normally in rainy days

• With built-in 230mAh battery, about 4.5 hours of using time

• Easy to install and remove

Specification:

• Light source: 5*2835 LED

• Wavelength: 620nm

• Power: 1W 

• Weight: 20g 

• Material: ABS 

• Size:70*30*30mm 

• Power source: Built-in polymer battery(230mAh)

• Runtime: 4.5H

• Charging time: 0.5H

• Waterproof: IP44

• 4 Modes: half brightness/fast flashing/slow flashing/full brightness