What is the best emergency light tool for automobiles? A low cost and effective solution is the LED light sticks. They can be stored in the glove of your car and when you need light when checking the map, changing tires in the wild, signaling for help in emergency, LED glow sticks come in really handy and they are only a couple dollars in cost. As great safety supplies, these glowsticks products attract attention of kids and can keep them occupied for hours in the back seat of the car. Other products blinky lights like finger lights. The LED sticks can glow as long as the batteries work.