In addition, the white light gets filtered by the red or green lens, cutting out other frequencies (colors). The power that went into generating the unwanted colors is lost. (Not fully applicable to single 'bulb' tri-color lights, there you have to live with the losses)
Leslie. -------------------------------------------- On Thu, 10/30/14, Leslie Paal via CnC-List <cnc-list@cnc-list.com> wrote: Subject: Re: Stus-List Running Lights To: "Bill Coleman" <colt...@verizon.net>, cnc-list@cnc-list.com Date: Thursday, October 30, 2014, 12:45 PM Bill, LEDs generate light at a given frequency (color) based on the "impurities" on the chip. Those are carefully controlled impurities; but can not be mixed for wide color spectrum. So a red or green led will be tuned for that color and all the power goes into that color. Most likely their bulb is clear to get the best efficiency. "White" LEDs work differently. They have a blue/UV LED with yellow phosphor coating to make what looks to our eyes as white. But it does not have as much power at red or green as a pure red/green LED for the same input power. I hope this helps. Leslie. -------------------------------------------- On Thu, 10/30/14, Bill Coleman via CnC-List <cnc-list@cnc-list.com> wrote: Subject: Stus-List Running Lights To: cnc-list@cnc-list.com _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
