Ever wonder what that extra plug on your vintage Nightsun Team Max or Classic headlight was for?? Wonder no more… When I rode with this tail light, I constantly received comments like “That light is as bright as the surrounding cars brake lights…” It did the job during the rainy Seattle winter bicycle commutes of 1993 and beyond. Vintage Nightsun Bicycle Tail Light, EUC Also included: 2 rubberized clamps and a self-made aluminum plate that helped to properly angle the light when attached to my seatpost. Thanks for looking! —————— For reference: Rockbros, Cyglolite, Avenida, NiteRider, Origin8, Planet Bike, CatEye