NCHRP Web-Only Document 146: Replacement Processes for Light Emitting Diode (LED) Traffic Signals John D. Bullough Jeremy D. Snyder Aaron M. Smith Terence R. Klein Lighting…

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Slide 1HPI(T) Plus lamps Metal halide lamps compatible with HPL and SON gear Slide 2 HPI High Pressure Iodides PlusCompatible both on HPL and SON gear BUBase up SInternal…

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HPI(T) “Plus” lamps Metal halide lamps compatible with HPL and SON gear HPI lamps Nomenclature HPI High Pressure Iodides Plus Compatible both on HPL and SON gear BU Base…