* IPX7 waterproof: Works even after 30 minutes of immersion at a depth of 1 meter* 3 times brighter than EL135* OptiCube lens technology* Low battery indicator* Mode memory function* Two light modes (Constant / Flashing)* Replaceable bracket spacer* FlexTight bracket* Battery life: Constant - 30 hrs (50 lumens) (approx.) Flashing: 250 hrs (50 lumens)* Battery type: 2 x AA alkaline* 5 ultra LED lights bright* Design that offers high visibility* 3 modes: fast, flashing, constant* Battery life: Rear - 60 to 120h, Front - 40 to 120h* 2 AAA batteries* FlexTight support