Topeak redlight ii super bright 3 le d tail light with wide angle reflective lens select blinking or steady on functions mounts to seatpost topeak wedge bags or seatstay features 3 ultra bright red le d tail light with onoff blinking and steady on functions wide angle 220 reflective lens dimensions 46x4 8x2cm weight 16g without battery bulb 3 led 10 000hrs lifetime battery lithium cr2032 x2pcs burn time 60hrs constant hour buy topeak accessories from chain reacti