How would you like to have a battery powered chemical light flashing two different colors and that is infinitely connectable to make a signal baton or mast? In addition, you have the choice of seven different colored beams for a wide angle and focused spot flashlight and more chemical light applications. The same light can also be requisitioned Infra Red and a special Black tube, which produces a discreet focused IR spot and no side light for increased stealth. Would this meet many of your tactical needs in a small and compact package? Emergency Preparation:10 year battery shelf life, small, lightweight, waterproof and reliable, with up to 150 hours of battery life, LazerBrite is perfect in a natural disaster or zombie attack. Industrial Safety: Use LazerBrite on construction sites, oil-rigs and road and transportation projects to mark hazards, equipment, chemical spills or for other visual signaling - Also, personalize LazerBrite by adding your company's logo for a great, functional safety award. Outdoor Recreation: Use as a tent lantern, flashlight, glowing marker or signaling unit while biking. Hunting: Use LazerBrite Visible colors for all your lighting needs, blue for tracking, IR with night vision equipment. Private aviation: Backup cockpit lighting and in your emergency kit. Child Safety: See and be seen in traffic and use in place of a glowstick on Halloween and 4th of July. ---LINK TO WEBSITE HERE--- They are rugged, durable, can't seem to break them, really. You can attach as many together as you like to form a giant beacon...and they also come in IR, which is cool. I don't have those yet.