About the Merak Bar End Light Set - 15 Lumen The Moon Spica Bar End Lights are amazing compact and bright CNC\\\'d lights, that fit neatly and securely into the ends of your drop bars for additional visibility. Featuring a 31 degree total beam angle and a 6 degree spot angle, with a 15 lumen output, these are great little lights for the safety conscious cyclist. With these lights, other road users can see the sides of your bike, making sure no one invades your personal space. Including quick release mounting, you can easily take your lights on and off your bike. Key Features > Brightness: Up to 15 lumen output > Battery Life Indicator: Yes > Magnetic bar end mound Quick release mounting > Light modes: Day flash mode > Dimensions: 29 x 29 x 20mm > Front/Rear/Set: Rear > 31 degree total beam angle 6 degree spot angle Light mode memory > CNC aluminium casing