Re: LED "searchlight" signals



White LEDs are actually blue LEDs with the substrate (the
semi-conducting bit that emits the light) coated in phosphor that
flouresses white when exposed to blue light - thus the blueish
appearance of white LEDs - a small mount of the blue light filters
through the white emitting phosphor.

correction...

the phosphor emits yellow light which ours eyes see as white when
combined with the original blue - soz
.

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