One of more rugged LED lights from Surefire at OPSGEAR... "Compact (pocket sized), high-intensity, selectable-output/multi-spectrum LED flashlight for tactical, self-defense, recreational, and general use. The Kroma's virtually indestructible primary light emitting diode (LED) provides a long-running, brilliant, tactical-level high beam with nearly three times the light of a larger two D-cell flashlight enough light to temporarily blind an assailant. Its TIR (total internal reflection) lens ensures that the primary beam is perfectly focused no dark holes, hot spots, or shadows.

Green, red, blue, and infrared secondary LEDs feature output levels suitable for operations requiring minimal light; for preserving night vision while navigating, tracking, map reading, or other close work; or for negotiating outdoor terrain without disturbing wildlife (many animals can't see red light). A rotating selector ring allows for no-look control just twist to change beam color or output level.

• Selectable, white primary beam and secondary beams of blue, green, red, and infrared
• Electronically controlled LED light source has no filament to burn out or break, lasts for thousands of hours
• Total Internal Reflection (TIR) lens produces tightly focused central beam
• Rugged aerospace-grade aluminum body
• Mil-Spec Type III hard anodized in black
• O-ring sealed, weatherproof
  
• Tempered Pyrex window
• Heavy-duty pocket clip
• Tailcap switch: press for momentary-on low beam, press further for momentary-on high white beam; twist for constant-on low or high beams
• Switch lockout prevents accidental activation during transport or storage
• Flashlight lanyard included"