While population of leisure in bicycle is increasing, most bicycle lamps are subpar, installing a mere LED flashlight onto a handlebar. Such goods cast a narrow spot light, which leads to difficulties in recognizing objects on the road, as well as severe dazzling to oncoming riders. In contrast, with an ingenious gyro-integrated design, ego projects a well-controlled cut-off beam on the front path, giving a superior field of view and mitigating eye strain, regardless of roll of the bicycle, or balance in light. Furthermore, its round shape with a rubber bracket not only minimizes cause of injury to the chest, but improves ease of use as well.