pi-lit is a Southern California technology group that develops advanced traffic safety products to help bring professionals home each night. pi-lits Smart Sequential Road Safety Flares is USA made and is used widely by departments of transportations, public works, utility groups, law enforcements, etc. Easy to deploy, effective at warning and directing traffic safely around crews, and rugged (can withstand road impacts and road conditions). Plus, they are FMCSA approved. Come see how the sequential safety flares can enhance your crews safety today.