LED technology, LEDtronics' AUT-1157 LED lamps offer automotive applications years of reliable performance, which represents potentially millions of dollars in reduced repairs and ancillary costs. Due to faster turn-on times than conventional incandescent signal lamps, AUT-1157 LED lamps promote safe driving by increasing the amount of response time available for motorists. AUT-1157 LED lamps operate 0.2 seconds quicker than incandescents. That's an extra 19 feet of response time at 65 mph for the trailing vehicle. [Distance traveled = (mph)(5280 feet/mile)(1/3600 hour/sec)(0.2 sec.)] The results? Less rear-end collisions. http://www.ledtronics.com/markets/auto_index.htm