90 Degree Adjustable Beam Angle - Why Customers Don't Like The Old Light? The old light cannot illuminate the ground in front of you. This is what you need. Our engineers have developed a 90 degree adjustable vertical bar to meet the demands of inclines and slopes. ^Beam Distance: The light beam illuminates the path in front of the runner at a lighting distance of 25m to detect obstacles or dangers. It is much longer than in the old style.^Long Battery Life - Intensity 2 manual intensity settings: 4 hours with 500 lm (High Light) and 10 hours with 125 lm (Low Light) to ensure you achieve the desired brightness with a single button. And the rechargeable USB lamp is waterproof, convenient, reliable and durable.^Visibility in all conditions: this is one of the most innovative and efficient safety lights on the market. Reflective elastic bands and two flashing red LEDs on the battery cover help riders to be seen by the rider and avoid an unnecessary crash in the dark. And the little "cap" prevents the beam of light before dazzling the runner.^COMFORTABLE TO WEAR - Each strap is 10cm longer than the old style, to adapt to different body groups and achieve the most comfortable condition, even fat runners, it is zoomable and durable. High elasticity adjustable chest strap allows you to adjust the length and tension according to your individual body, keep the body around your body and not move so that you feel comfortable and relaxed. comfortable during exercise.