HDS Systems designs and manufactures advanced multi-brightness everyday carry flashlights and headlamps - small, efficient, rugged, variable output - from 0.02 lumens to maximum. Different interfaces serve different purposes: EDC Tactical is for defensive and offensive situations; EDC Rotary is the most convenient full range multi-brightness flashlight available; EDC Executive is rugged but simple with 4 preset levels; EDC Headlamp for hands free use. Automatically detects rechargeable batteries - will not trip battery protection circuits - no sudden darkness. Designed and built in the USA. (less)