RELAX Sunset Amber Sleep Light Bulb E27 | Blue-Light-Free | RELAX and SLEEP

RELAX Sunset Amber Light Bulb

The Healthy Lighting Upgrade for Your Home

The RELAX Sunset Amber bulb replaces your general household lighting with a 100% blue-light-free warm amber glow – the same job, a healthier choice.

Standard household lighting contains approximately 25-35% blue light, which signals daytime to the brain and impacts sleep.

The E27 Edison screw fitting is the most common UK and European household bulb fitting, also compatible with E26 US-style lamps.

CHIRYŌ Light Therapy E27 large screw type fitting, screws straight into ceiling, lamps and wall scones to give the room a warm amber light that’s bright enough for everyday evening use – reading, eating, family time, kids’ bedtime routines – without the blue wavelengths that work against your sleep biology.

Amber lighting is the most common starting point for households moving away from standard “warm white” bulbs. Most homes can switch to amber across living areas, hallways, and bedrooms without anyone noticing a dramatic change to the room – except that the lighting feels less harsh, and people find they sleep better when their evening lighting stops signalling daytime to their brain.

Where to use the RELAX Sunset Amber E27 Light Bulb (E26 US)

• Living room and dining room ceiling lights
• Hallways, landings, and stairwells
• Kitchens and bathrooms
• Bedside lamps with standard screw fittings
• Children’s bedrooms and nurseries
• Anywhere you currently use a standard E27 bulb

This bulb fits any standard E27 large screw light fitting (the most common household fitting across UK and Europe) and is E26 compatible for US-style lamps. For bayonet fittings, see the RELAX B22 version. For smaller candle-style fittings, see the RELAX E14 candle bulb. For round E14 bulbs, see the RELAX E14 bulb.

Explore how amber light supports evening relaxation and sleep The Benefits of Healthy LED Amber 600nm Lighting

Q. Are all Amber Light Bulbs the Same?

A. No. Most “amber” or “warm” bulbs still contain significant blue light – the colour of the glass or coating doesn’t tell you what wavelengths the bulb actually emits. Our RELAX Sunset Amber is engineered to be 100% blue light free, with the spectrum measured at source.

Learn more about healthy lighting with our free downloadable healthy lighting guide.

Who uses RELAX Sunset Amber lighting?

The Healthy Lighting Upgrade

Many of our customers come to us because they’ve read about the impact of blue light and realised their “warm white” bulbs aren’t doing what the packaging implies.

They want a genuine alternative for their everyday lighting – something they can put in the living room ceiling fitting, the hallway lamp, the kids’ bedroom, and the bedside table without thinking about it. CHIRYŌ Light Therapy RELAX Sunset Amber is exactly that. It’s the practical, everyday version of healthy lighting.

Sleep Difficulties

Amber lighting also supports sleep – because it’s 100% blue light free, it doesn’t suppress melatonin or signal daytime to the brain.

Harvard Medical School recommends reducing blue light exposure in the hours before sleep, and amber lighting is the easiest way to do that across the whole home. If you want to go further in the final hour before bed, our SLEEP Red range removes green wavelengths as well, for the lowest possible visual stimulation in the bedroom.

Households Managing Mental Health, Neurodivergence, and Neurodegenerative Diseases

A lot of our customers are managing mental health conditions (anxiety, depression, PTSD, bipolar), neurodivergence (autism, ADHD, dyslexia, dyspraxia, Tourette’s, global developmental delay), or caring for someone living with Alzheimer’s or other forms of dementia.

Sensory sensitivity to light is common across all three. Amber is often more accepted in these households than red because it feels closer to “normal” lighting while still being 100% blue light free — making it easier to introduce as the everyday household light. Many customers use amber across the home and switch to red only in the bedroom from an hour before sleep. Read more about evening lighting and sleep support →

Families using Melatonin

Many of our customers are families whose child or parent has been prescribed melatonin. What the prescription doesn’t come with is a conversation about evening lighting, which is one of the main factors working against melatonin — both the medicine and the body’s own production.

A peer-reviewed study found that melatonin suppression from artificial light is greater in children than in adults (see sources below). Amber lighting in the evening, with red in the bedroom before sleep, gives families a complete blue-light-free home environment. Read more about melatonin and evening lighting →

CHIRYŌ Light Therapy RELAX Amber vs SLEEP Red Light

Both RELAX Sunset Amber and SLEEP Red remove 100% blue light from your evening lighting. The difference is when you use them.

RELAX Sunset Amber is your everyday evening lighting – the replacement for general household bulbs across living rooms, kitchens, hallways, bathrooms, and bedrooms. Bright enough for normal evening tasks, warm in colour, and 100% blue light free. The practical starting point for a healthier-lighting home.

SLEEP Peaceful Red goes further by removing green light as well as blue, leaving a deep red glow that the brain reads most clearly as night. Typically chosen for the last hour or two before bed – bedrooms, nurseries, bedtime reading, night-time wake-ups. Some customers find red too dim or too red for general use, which is exactly why amber exists.

Many customers use both: RELAX Sunset Amber across the home in the evening, SLEEP Peaceful Red in the bedroom from an hour before sleep.

When RELAX Sunset Amber may not be ideal

Please Note: Amber lighting isn’t right for every task. If you’re applying contouring makeup, cooking something where visual colour accuracy matters (judging meat, sauces, presentation), or doing detailed art work, a white light source will serve you better for those specific tasks. Many of our customers use RELAX Sunset Amber as their main household lighting and keep a small directional white task lamp for these moments. The two work well together.

Healthy Lighting Sources & Further Reading

CHIRYŌ Light Therapy: Healthy Lighting FREE downloadable guide healthy lighting guide

Peer-reviewed spectral measurement: LED vs cool white fluorescent lighting Standard LED household lighting measured at 35.8% blue light. researchgate.net

Harvard Medical School: Blue light has a dark side “Use dim red lights for night lights. Red light is less likely to shift circadian rhythm and suppress melatonin.” Harvard researchers also found blue light suppressed melatonin for about twice as long as green light of comparable brightness. health.harvard.edu/staying-healthy/blue-light-has-a-dark-side

National Institutes of Health: Children’s melatonin and LED lighting Study found melatonin suppression in children was greater than in adults, and greater again under cooler-temperature lighting. The researchers recommend warmer, lower blue-content lighting in the evening for children’s sleep. ncbi.nlm.nih.gov/pmc/articles/PMC6295443

Physicians for Safe Technology: Sleep, melatonin and light at night A doctor-led summary of the research on evening light and sleep, including the Harvard study and the Chang et al. study showing reading on a light-emitting device for four hours before bed produced 55% less melatonin than reading print. mdsafetech.org/melatonin-and-light-at-night

National Institutes of Health: Measuring blue light’s circadian effect (CIE S 026 standard) The international standard for measuring light’s impact on the human body clock, weighted to the eye’s blue-cyan sensitivity peak around 490nm. ncbi.nlm.nih.gov/pmc/articles/PMC12693798

About CHIRYŌ Light Therapy

CHIRYŌ Light Therapy is a UK brand based in Bristol, specialising in blue-light-free home lighting and LED light therapy devices. The Healthy Lighting range was developed by a founder with approximately twenty years of professional experience working with autistic and neurodivergent individuals, from mental health support through to present day, after seeing first-hand how rarely families are given practical, environment-based tools to support sleep and health.

In-home lighting consultations are available in Bristol and the surrounding area.

This product is general household lighting designed to support a low-blue-light evening environment. It is not a medical device and is not intended to diagnose, treat, or replace any medication or clinical advice.

Reviewed by CHIRYŌ Light Therapy May 2026 – Specialists in Healthy Lighting and FDA-cleared blue, red, and near-infrared LED light therapy devices.