A high power LED lamp module for installation in conventional traffic signal
lamps
includes a housing with a side flange and a spacer ring extending therefrom, a
plurality of LEDs disposed inside the housing for producing diverging light, a
power supply disposed in the housing between the LEDs and the housing rear wall,
a threaded electrical connector extending therefrom, and Fresnel/outer lenses extending
across the open end of the spacer ring for collimating the diverging light from
the LEDs. The Fresnel lens is disposed a first distance from the light emitting
diodes wherein the light collimated thereby just fills and illuminates the entire
outer lens. The flange is separated from the rear wall portion by a second distance
that does not exceed about 100 mm or about 70mm for a 12 or 8 inch diameter lamp
module respectively, to ensure the lamp module fits inside conventional traffic
signal lamps.