BC-TL5510 Max Lumens:30LM(COB LEDs) Battery type:350mAH Li-ion polymer battery Mode(Runtime):25% steady(8h)-50% steady(4h)-100% steady (2h)-25% flash(16h)-100% flash(8h)-25% quick flash (12h)(double click=flash) (Auto-brake signal) Charge time:1hours(depending on USB charger) Main materials: Plastic+aluminum frame Waterproof level:IPX4 Size(not include bracket):43*27*17mm Weight (include bracket):38g Indicator: Red LED steady Charged Indicator: Red LED off Click button to change mode hold button 1.5 seconds to OFF