axa rear light nyx battery blackThe Nyx is a small fender rear light. The light has a special designed integrated Z reflector, whic Specifications Approved StVZO, French Battery 2 x AAA Brand AXA Color Black Front Rear Rear Item Name Nyx Battery Item Type Rear light Light Source LED Other With additional clamp (not included) light can be mount on the seat stay. Package 1 10 Power Source Battery Product Info The battery version works on 2 AAA batteries which can be replaced easily.