Magicshine bike taillight, Seemee 20 and Seemee 60, a super small, sleek and lightweight design bike rear light / blinker light for road and urban cyclists.20 lumens max, COB LED, 180 degrees visibility1 constant and 2 flash modes, 3 brightness modes1.4 hours runtime on highest brightness constant modeSlanted mount base enabling horizontal beam direction17g in weightUSB rechargeableo-ring mount