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Circadian Light Bulb E27
- Support your natural rhythm
- Warm light before sleep
- Wind down in the evening
- 100% secure payment
- Free shipping +55€
- 30-day guarantee
Order
September 4
Shipping
September 5
Delivery
September 13-16
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Details
A single bulb with three light modes — white, amber, and red — designed to work with your body's natural rhythm from morning to bedtime. No app, no Wi-Fi, no setup. Just toggle your switch.
Shipping & returns
Free shipping on orders over €55. Orders are prepared within 24 hours and delivered in 2-3 working days. You have 30 days to return your order.
Technical Specifications
Type
LED A60 — 7W
Base Type
E14 (Small) / E27 (Standard)
Light Modes
3 phases: White (4000K), Amber (1600K), Red (625nm)
CRI
96 true colors
Blue Light
0% blue light in night mode
Sleep Mode
625nm red light — melatonin-friendly
Connectivity
No Wi-Fi, no app — toggle switch operated
Memory Function
Remembers last setting after being switched off
Lifespan
25,000+ hours
Voltage
220-240V
“Exactly what I hoped for. Great quality and it arrived super fast. I'd buy it again without a doubt.”
Verified customer
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The right light for every hour of your day.
Morning · White
Bright, full-spectrum white light first thing tells your brain the day has started. It lifts alertness and focus the way morning sun does — perfect over your desk or kitchen to shake off the grogginess and get moving.
Afternoon · Amber
As the day winds down, switch to warm amber. It drops the harsh blue light that keeps you wired and eases your body toward evening — ideal for dinner, the living room, and the hours before bed.
Night · Red
Red is the only light that won't suppress your melatonin. In the last hour before bed — reading, unwinding, a trip to the bathroom — it keeps the room lit without wrecking the sleep you're about to get.
Dr. Antelm Pujol
“Gudslip products, based on scientific evidence, promote restorative sleep and improve cognitive and physical performance.”
One bulb, three modes
Screws into any standard lamp — no app, no hub, no wiring. Flick the switch off and on to move through white, amber and red. That simple.
Light that respects your body clock
Bright white to wake you up, warm amber to wind you down, and red at night that won't suppress your melatonin. The right light for every hour.
Built on circadian science
Designed around how light drives your sleep-wake rhythm — brighter mornings, calmer nights, and a smoother path into deep sleep.
After 3 weeks of lighting their day right, 90% slept better
89%
Woke up feeling more alert in the morning.
91%
Found it easier to wind down at night.
87%
Fell asleep faster.
89%
—
Woke up feeling more alert in the morning.
91%
—
Found it easier to wind down at night.
87%
—
Fell asleep faster.
Why Gudslip is the perfect choice
A smart bulb can change colour — but it wasn't built for your sleep. Ours is: the right light at the right time, no app required. That's the difference.
Smart bulbs
Regular bulbsWhite, amber & red in one bulb
True red that won't suppress melatonin
Tuned to your circadian rhythm
Changes colour with the wall switch
No app, wifi or hub
Full-spectrum daytime white
Henkel-certified hypoallergenic adhesive
No blue light at night
Simple & affordable
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Join the family
Frequently asked questions
What makes the Circadian Light Bulb different from a normal bulb?
It gives off warm light without the blue wavelengths that keep you alert. In the evening, blue light can tell your brain to stay awake, so leaving it out helps your space feel calmer as bedtime gets closer.
How and when should I use it?
Use it in the hours before bed, in the rooms where you relax such as the bedroom, bathroom or living room. It fits a standard socket, so simply swap in the bulb and switch to warm light in the evening.
Who is this bulb for?
It is for anyone who wants to wind down more easily at night and support their natural sleep-wake rhythm. It is especially helpful if you use screens or bright lights late and want a warmer, gentler light before sleep.
When will I notice a difference?
Use it every evening so the effect stays consistent. Many people find their space feels more relaxing right away, while the benefit for your routine builds as warm evening light becomes a nightly habit.
Is it safe to use and easy to look after?
Yes, use it like any regular LED bulb in a suitable fixture. Screw it in gently, keep it away from water and let it cool before you handle it.
What is the difference between E14 and E27, and how do I choose?
E27 is the larger standard screw base and E14 is the smaller one, so check which fitting your lamp uses and pick the matching size. Orders over 50 EUR ship for free.