Dunlop rear light & reflector 3 led 76539 Rear light Dunlop rear safety while driving on a bike.  Specifications:·button for on/off· 2 light modes· water resistance· 3 x LED LED · power 2xAAA (battery not in included)· plastic construction· ; dimension lamps: 10x5.5z3 cm· distance between mounting holes 80 mm· assembly with screws on trunk