Red LEDs vs Yellow Incandescents (2700K)

Red LEDs look like the perfect solution..

But are they really?

Let's talk about it..

Red LED (~620-635 nm) basically has ZERO blue.

Incandescent (2700K) follows Nature’s blackbody spectrum. Its small amount of blue is naturally balanced by a huge amount of red & infrared (IR).

At lower brightness (using dimming via variac transformer/resistor-based dimmer), the blue component can shrink even more.

Standard Red LED → No Infrared

2700K Incandescent → Emits Infrared

Standard Red LED → High Flicker (PWM & Driver-Induced)

2700K Incandescent → Minimal Flicker due to thermal inertia

Standard Red LED → Generates a lot of Dirty Electricity

2700K Incandescent → No Dirty electricity

Standard Red LED → Artificial Narrow spectrum light

2700K Incandescent → Full spectrum light

The human brain and skin require heat (infrared) to accompany light. That rules out everything but the Sun, Fire and Incandescent light.

Choose wisely.