A high power LED lamp and method for retrofitting conventional traffic signal
lamps.
The LED lamp includes a housing, a power supply disposed in the housing, a plurality
of LEDs mounted to a substantially planar mounting surface in the housing and electrically
connected to the power supply for producing diverging light, and a threaded electrical
connector extending from the housing. The method includes replacing a conventional
incandescent light bulb with the LED lamp, and installing a Fresnel lens inside
the traffic signal lamp that collimates and just fills and illuminates the outer
lens of the traffic signal lamp.