Good topic, The DRL that operates in the low beam of vehicles has more to
offer for oncoming drivers
(1) No added lights to face required to operate DRL
(2) low beam is already focused low in lamp design
(3) allows drivers to recognize low beam operations
(4) The DRL1 Kit extinguises with park brake application
(5) avoids additional DRL lamps that cannot be shut off
in the pretention of being fog or driving lamps

Listed below is the weblink to the canadian inventor of our DRL

http://www.pacificinsight.com/
We have 2 vehicles with the DRL1 kits and like them very much.