Ir Chemlight 6'' - 8hrThese infrared tactical grade light sticks have been tested in battle fields and covert operations for decades. ChemLight is the only chemical light brand trusted by the US Armed Forces, and it's not accident. These light sticks provide up to 8 hours of utterly reliable infrared light. Extremely durable, ChemLight is waterproof, non toxic and non flammable. The light stick features a hook and gate top which keeps the light source secure whether you're