Sleeping next to CozZie Glow in Ember Mode is like sleeping next to a campfire. The biology
responds accordingly.

Ghost Mode
Ghost Mode is the discovery that changed everything.

It started with a simple question: how low can it go before it is no longer visible? Not a research
project. Not a hypothesis. Just curiosity and a 16-bit PWM controller and a refusal to stop
turning the knob.

So | turned it. And kept turning. And at 340 out of 65,535 my eyes said nothing. And | thought —
is it actually off? So | grabbed the camera. And the histogram said no. It is not off. It is still there.
You just cannot see it anymore.

That is the moment. That is Ghost Mode.

At PWM 340 out of 65,535 the filament is barely alive. The light is still red — but so low in
intensity, and so far into the red spectrum, it becomes a ghostly glow. The absolute limit of what
my eyes can detect. It is mesmerising.

The visible output is near zero. What remains is deep red shifting into near infrared and infrared.
Confirmed by Canon RAW histogram analysis — significant sensor activity recorded in a frame
the eye perceives as completely black. The histogram shows a concentrated spike at the far left
— near zero luminosity — with red channel activity confirming infrared emission. The image
appears black. The light is there.

Ghost Mode is not possible at 8-bit PWM. The steps are too coarse. You would skip over it
entirely. Ghost Mode exists in the space between steps that only 16-bit resolution can reach.

Why an LED Cannot Do This

An LED cannot follow that journey. It is not a matter of cost or control resolution. It is physics. An
LED has a forward voltage threshold — a minimum voltage below which it does not dim
gracefully. It simply cuts off. There is no ember. There is no ghost. The filament of an
incandescent bulb is a resistive load. It follows the power down smoothly, all the way to the floor,
shifting colour as it goes — because a cooling filament obeys blackbody radiation curves from
white to amber to deep red to infrared without interruption. You cannot replicate that with a
semiconductor. The journey is the point. The LED was never going to take you there.