The moon crescent front light provides amazing light output from a small and lightweight unit the design allows for the light to be seen from all angles so providing side on visibility moon crescent front light features 1 pce cob 15 chip led 50 lumen output front 30 lumen output rear 22 lux 1m 37v 300mah lithium battery usb rechargeable up to 6 hours 30 minutes runtime all round visibility 2 h