| 摘要 |
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 so that 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 70 mm for a 12 or 8 inch diameter lamp module respectively, to ensure the lamp module fits inside conventional traffic signal lamps.
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