Cyalume Light Sticks 15" Impact Chemlight is a bright and dependable source of emergency lighting that is clean, non-toxic and safe in all environments whether near gas or oil, or any combustible materials. Cyalume 15" Lights come in five colors and last anywhere between 8 and 12 hours after activation. Activation occurs by simply by striking a hard surface. Cyalume light sticks are being used in homes, hospitals, schools, nursing homes, offices, hotels, trains, industrial sites, police, fire, EMS, utilities and government agencies. In the event of blackouts, in remote locations, areas of confined space, and at crime and accident scenes, Cyalume light sticks are the perfect emergency lighting product. There is no need to replace batteries and bulbs like when using a battery operated flare. Standard road flares have a flame in contrast to the Cyalume light sticks that activate by striking it on a hard surface. There are no environmental concerns when disposing the Cyalume light sticks unlike the standard road flares. In addition, the life of each Cyalume light sticks last up to 24 times the life of a standard road flare and works in sub-zero temperatures. Another great aspect of the Cyalume light sticks is that they have a shelf life of 4 years. Cyalume light sticks are made in the USA. Sold by the case of 20 light sticks. Government Buyers Call 1-866-864-3495