The Helios brake light has 5 red LEDs to make sure you are visible while riding at night. This light is powered by 2 included AAA batteries. It also has a battery level indicator/charge light and a sensor with autodetection so the light will illuminate wh
• Powered by two AAA batteries that are included
• 5 red LEDs make sure you are visible
• Sensor in the light has an autodetection feature so it will light up while you are slowing down.
• Universal rubber bracket fits adjusts from 22-32 mm
• Has a battery level indicator/charge light