The Cateye Nima Front/Rear LED Light Set 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 won�t let you down. Superbly stylish front and rear lights with easy attachment. They are tough simple and reliable and will fit to seat post handlebar bags helmet etc. With 4 Modes: Constant/ Flash/ Rapid/ Pulse and upto 80hrs. run time.