Clearly mark evidence at night using our unique Evi-Lites. Activate the light with a simple twist and place under one of our Versa-Cones to completely light the cone. Ideal for ad-hoc traffic markers, or for assistive lighting during photography at low light crime scenes. Evi-Lites are waterproof and submersible for use in wet or shallow water conditions. Available in various colors. Each light provides up to 48 hours of illumination and uses two standard CR2032 watch batteries included. Each light only measures 3.1cm 1.25 inches in diameter and is 2.5cm 1 inch high.