Led lamp with selectable color temperature output

A color correlated temperature (CCT) tunable LED lamp comprising:

• a primary LED grouping including a plurality of LED light sources that provide a first net CCT rating light emission;
• switchable LED groupings comprising at least (i) a second LED grouping of a plurality of LED light sources providing a second net CCT rating light emission, and (ii) a third LED grouping of a plurality of LED light sources providing a third net CCT rating light emission;
• a conduction path selector to respectively connect or isolate one or more of the second LED grouping and third LED grouping to or from the primary LED grouping, the second net CCT rating is greater than the first net CCT rating, and the third net CCT rating is lower than the first net CCT rating;
• and
• LED light sources of the primary LED grouping, LED light sources of the second LED grouping, and LED light sources of the third LED grouping are positionally distributed in an interleaved arrangement.