In a nutshell, HID lighting needs a reflector system to provide the correct optics. There are inherent light losses with these systems. LED does not need a reflector because the light out of the source is directional. LED source puts the light where you it with minimal loss outside the desired pattern and gives reduced light pollution. With LED light sources, there is no need to replace a bulb or ignitor every couple of years so maintenance costs are greatly reduced.Read More