Tough simple reliablethese incredibly nima lights may be diminutive but they really pack a punch small enough to be a back up powerful enough to really get noticed and cateye built which means they wont let you down superbly stylish front and rear lights with easy attachment will fit to seat post handlebar bags helmet etc 180 degree visibility through light permeable housing click tec switch for ease and increased water resistance simple o ring band mount 4 modes constant flas