The 500 lumen rechargeable LED light that securely attaches to the buckle of the Noxgear Tracer2 or Tracer360 Vest. While charging the Tracer Lamp, the LED indicator will show a solid red light. The charge sequence can take up to about 5 hours to complete if it is fully depleted, at which point the LED will change from solid red to solid green in order to indicate the full charge.