The black EB1 Backup LED Flashlight from SureFire is a compact dual-output LED light that was designed as a backup light but performs like your primary flashlight. The 5-lumens Low output conserves battery power but is bright enough to read and perform basic tasks. 
For searching or tactical use, the 200-lumens High-output can cause temporary blindness in subjects. This light features SureFire's Total Internal Reflective (TIR) lens system. This lens is precision-focused at the factory to produce a smooth beam that is bright in the center with a dimmer ring on the periphery that helps maintain situational awareness.