12-Hour Light Sticks supply instant and long-lasting light in an emergency. Light Sticks provide bright green illumination for up to 12 hours. For safety, they can be used to warn or signal in darkness and can provide critical light in an evacuation. These light sticks are non-toxic, non-flammable, and weatherproof. 12-Hour Light Sticks are compact and lightweight, making them easy to store in any emergency kit or take along on the go. 30/cs. Weight: 5 lbs.