This great combo comes with a powerful 3 Watt headlight with handlebar clamp and a tail light with 3 LED bulbs for safety. Includes 5 AAA batteries. Taillight piece measures: 2 1/2 h x 2 5/8w x 1 7/8d.This great combo comes with a powerful 3 Watt headlight with handlebar clamp and a tail light with 3 LED bulbs for safety. Includes 5 AAA batteries.