Quick DetailsPosition: Front Light Type: bicycle light Power Supply: Battery Mounting Placement: Frame Place of Origin: Guangdong,Website:://.trustfirelight.com, China (Mainland) Brand Name: Trustfire Model Number: D011 Led: 3 CREE XML-2 LED Mode: high,low,strobe Brightness: 2100 Material: aluminum,Mirro reflective cup Battery pack capacity: 4000mah Running time: 2.5hours Specification: 49mm(Length)*50mm(head Diameter)*55.7mm(body Diameter) Product name: bicyle light Design: 18650 battery pack can as the power bank Brand name: trustfirePackaging