THE SCIENCE OF EVENING

Let the night feel like night.

After sunset your screens still glow with the same blue-rich light as noon, and your brain reads it as "stay awake." The Evening lens filters most of that band so the hours before bed actually feel like evening.

  • Blocks 100% of UV, indoors and out
  • Warm amber tint, never muddy red
  • Built for screen wind-down at home
  • Tuned for the last hour before bed

EVENING · MEASURED

The Evening lens, measured.

~78%evening blue light blockedthe band that keeps you alert
~100%UV blockedfull UVA and UVB cover
Warm amberwarm amber tintcalming, never a red haze
Lab-testedLab-verifiedfull readings published below

Tuned to filter the harsh evening blue while keeping the warm light you need to see clearly.

THE MECHANISM

How your body clock reads light.

A small clock in your brain uses light to decide whether it's day or night. Bright blue-rich screen light after dark tells it the sun is still up, so the Evening lens filters that band and lets the warm, harmless light through, keeping your evenings honest.

  • Filters the blue your screens fire after dark
  • Blocks ~78% of evening blue light
  • Warm by measurement, never a red cast

THE SPECTRUM REPORT

We block the light that keeps you awake.

The lens cuts deep through the energising blues that delay your wind-down, while letting the warmer light through, so the shift into night feels gentle. The result is a screen that stops shouting "daytime" at your brain after dark.

~78%of evening blue light blocked
100%of UV blocked

PER-WAVELENGTH

The full numbers, published.

This is exactly how much light gets through, colour by colour. Lower means more is blocked. The Evening lens stays low across the alerting blues where it matters most, while the Day lens lets more of that band pass for all-day wear.

WavelengthDayEvening
400 nm3.0%2.4%
410 nm13.1%12.4%
450 nm45.6%22.1%
470 nm60.3%23.4%
500 nm74.1%29.1%
550 nm92.7%54.6%
600 nm98.7%85.0%
UV (280-380 nm)~0%~0%

Lab-measured, 2026. % of light passing through.

THE REDSPEC STANDARD

We block about ~78% of the evening blue, tuned to filter the harsh band while keeping the warm light you need to see clearly.

From the Spectrum Report

WHY REDSPEC

Not all blue-light glasses are equal.

RedSpec Evening Ordinary glasses
Lab-tested, numbers published Vague, unverified claims
Blocks ~78% of evening blue light Often just 10-20%
Blocks 100% of UV light Often no UV cover
Warm, easy on the eyes Heavy muddy orange cast
Premium bio-acetate frames Cheap brittle plastic
Backed by a satisfaction guarantee Final sale, no recourse

PROTECT YOUR SLEEP

Let the night feel like night.

The wind-down lens for screens after dark. Filter the light that keeps you up, and let your evenings settle the way they should.