Dear Sir/Madam, Position:Wheel Type:LEDs Power Supply:Battery Mounting Placement:Frame Product name:Wheel Bike Light Function:Outdoor Lighting Color:Red/blue/green/colorful Battery:Inner Battery Material:Plastic Feature:Ultra bright, Long time Lighting Mode:Fast strobe/ slow strobe/on Lumen:15.5*6.5 LM Weight:19 g Certification:CE 3C BV RoHS Show More