The Cyalume Technologies PML Personnel Marker Light can be clipped on a life jacket, strap or clothing and contains a green ChemLight that is manually activated by squeezing the handle. When the protective sleeve is removed, 360° of steady light is revealed and will last 8 hours.
The Dual PML has two ChemLights that are both activated when the handles are squeezed for use in warm or cold water with 8 hours of light.
Both the Single PML and Dual PML are visible up to 1 nautical mile and up to 3 miles by air. Single PMLs and Dual PMLs are Coast Guard approved.