New Study Shows DRLs Reduce Accident Risk by Almost 9%

Some governments have made them mandatory on motor vehicles. Sweden, Finland, Norway, and Canada, for example, mandated DRLs decades ago.  So far, the US government has resisted taking up the DRL cause, citing a lack of meaningful studies demonstrating that DRLs reduce accidents or save lives. Meanwhile in Malaysia, the first cars equipped with DRL were from Volvo in the early 1980s. DRLs were not separate lighting elements as we know them today, but bulbs were kept on all the time. They had a higher wattage because they needed to be very bright to be effective in the strong Malaysian sunlight. This meant they generated more heat. This resulted in an unexpected issue: the plastic covers began to deform.