Calm Green Light Bulb – E27 | Migraine & Headache Relief | Narrowband 520nm

(25 customer reviews)

£19.95

CHIRYŌ Light Therapy Calm Green Light Bulb (E27) for Headaches and Migraines emits a precise, scientifically-studied narrowband 520nm wavelength, clinically shown to alleviate headache symptoms.


Ideal for: work spaces, bedrooms, evening lighting, and headache/migraine recovery spaces.

Flicker-free, low EMF, and suitable for everyday use where standard lighting feels overstimulating.

  • Narrow-band green 520nm
  • Ultra-low blue light (1.5%)
  • Flicker-free + low EMF
  • E27 Edison screw fitting
  •  *READ ME*

    Size Guide

  •  Delivery & Return

    DELIVERY & RETURNS

     

    UK Shipping Rates

    Standard
    We charge a fixed shipping fee of £2.95 for all orders within the United Kingdom that are below £39.95 shipped by Royal Mail 48, Tracked with Signature (2-3 day delivery).

    Free Delivery
    For orders over £39.95, you will activate Free Delivery, provided by Royal Mail 48, Tracked with Signature. Other shipping options are provided such as Free Pickup (Bristol) and Next Day delivery, please see shipping rates at checkout.

    EXPRESS: Royal Mail 24 and Guaranteed by 1pm (includes Sunday delivery)
    At checkout, you have the option to choose between our Standard and Express shipping methods for your order.

    For those who need their products to arrive quickly, we provide the option to select Express Shipping at checkout for an additional fee.

    These options will be displayed during checkout, allowing you to make an informed decision on the best way to receive your order in a timely manner.

    Postcode Exclusions for Express provided by Royal Mail: The following postcode exclusions apply for Royal Mail Tracked 24 and Royal Mail Special Delivery Guaranteed account services: AB, BT*, DD, DG5-9 & 10-16, FK17-21, G58, G60, 62,
    63, 65, 71-84, GY, HS, IM, IV, JE, KA, KW, KY10, 14-16, ML10-12, PA20-38, 41-49, 60-78, 80, PH,
    PO30-41, TD, TR21-25, ZE.

     

    UK Shipping Times

    After placing your order, you’ll receive an order confirmation email containing your unique order number. Your order will be prepared, typically shipping it out the same day, although it may take up to 2 business days in certain cases.

    Please be aware that during peak sale periods, order dispatch times may be extended to 1-2 business days due to exceptionally high order volumes. It’s important to note that the estimated shipping time provided does not encompass the order processing duration; rather, it begins once your order has been dispatched.

    Once your order has been shipped, we will provide you with a Tracking Order number via email, which you can use to track your package via the following methods:

    My Account: Simply log-in to your CHIRYO Light Therapy account and select Track my Order option.

    Track my Order Page: Order Tracking – chiryolighttherapy.com

    Royal Mail: Track your Item | Royal Mail Group Ltd

    The shipping times may differ based on your location, and the estimated delivery times will be displayed at checkout.

    • Standard & Free Delivery: Royal Mail 48: 2-3 days (excluding Sundays)
    • Royal Mail 24: 1-2 days (including Sunday)
    • Royal Mail Next-Day Guaranteed by 1pm: Next day delivery (including Sunday)

    Please note all shipping times stated above are not guaranteed shipping times, as shipping times may vary depending on weather conditions and peak times of the year.

     

    International Shipping

    Standard
    All CHIRYŌ Light Therapy products are sent Worldwide, Parcels can be Tracked with Signatures required upon receiving.


    EU

    Standard
    If your order is less than £49.95 we have a fixed shipping fee of £3.95 for deliveries to the EU.

    Free Delivery
    You will activate Free Delivery when your order reaches £49.95


    US

    If your order is less than £73.99 ($99 USD), we have a fixed shipping fee of £4.95 for deliveries to the US

    FREE DELIVERY
    You will activate Free Delivery when your order reaches £73.99 ($99 USD).

    At checkout, you have the option to choose between our Standard, Free Delivery or Express shipping methods for your order.

    For those who need their products to arrive quickly, we provide the option to select Express Shipping at checkout for an additional fee.

    The shipping times may differ based on your location, and the estimated delivery times will be displayed at checkout.

    • Standard & *Free Delivery Tracked with Signature: 6-7 Days
    • Express: 3 days 
    • *US Free Delivery of XL and XXL Panels require 7-15 day delivery and will be shipped with all taxes included.

     

    TAXES

    Any taxes or duties imposed by individual countries outside of the United Kingdom is not included in the sale price (unless otherwise stated). When an order is shipped internationally, it may be subject to import taxes, customs duties, and/or fees imposed by the destination country. These fees are not included in our prices and we are unable to calculate import fees added to your shipment. If applicable, these charges are the responsibility of the recipient and will typically be due once the shipped goods arrive at the country of destination prior to delivery. For further information, we recommend contacting your local customs office.

     

    Pre-order items

    We strive to provide our customers with the most accurate dispatch date for pre-order items; however, please note that the listed date is an estimate and unforeseen delays beyond our control may occur.

    For orders that include both pre-order items and in-stock items, we will ship everything together as a single order once the pre-order items become available. If you would like the in-stock items to be shipped earlier, we can arrange this for you for an additional shipping charge.

    Any pre-order items that are cancelled will incur a 5% cancellation fee which will be deducted from any refund given as payment processing fees which are non-refundable.

     

    Returns & Exchanges

    Full-priced items purchased from CHIRYO Light Therapy can be returned for an exchange, store credit, or refund within 30 days of your order being placed.  

    CHIRYŌ Unique Bespoke panels are non-refundable as they are all custom-made to order.

    Once an order is placed for CHIRYO Unique Bespoke Panels the order cannot be cancelled as they are all custom-made to order, the work on them starts as soon as the order has been submitted.

    To start the returns / exchange process email: [email protected]

    All our exchanges or returns are subject to the following conditions:

    • CHIRYO Light Therapy must take receipt of the return or exchange product within 30 days of your order delivery. Please allow sufficient return shipping time for the item to arrive at our warehouse.
    • You will be responsible for paying for your own shipping costs to return the product to us.
    • Returns and exchanges are not applicable on CHIRYO Unique custom Panels as they are all custom-made to order.

    Product Condition

    • The product/s are returned to us complete and in a new and resalable condition.
    • All supplementary items supplied such as cases, cleaning cloths, and charging cables are all returned. Failure to include all included accessories will result in the return being rejected and a £7.99 shipping charge is applied to send the goods back to you.
    • All original CHIRYŌ Light Therapy branded packaging including cases and product boxes are returned undamaged and in new and saleable condition. Failure to include all original branded product boxes and cases will result in the return being rejected and a £7.99 shipping charge applied to send the goods back to you.

    Exchanges

    • International customers who wish to exchange their products, are required to pay the international shipping fee for their exchange order to be dispatched.
    • If you want to exchange any light bulbs or lamps for a different fitting or model then return shipping back out to you with your replacement bulbs will be at your cost.
    • Refunds are not applicable on CHIRYŌ Unique Bespoke custom Panels, as they are all custom-made to order.
    • Light therapy panel stands including the base stand, vertical stand and horizontal stand are eligible to be exchanged. Customers who wish to exchange their products, are required to pay the international shipping fee for their exchange order to be dispatched

    Refunds

    • Refunds will be credited to the same account as the account from which the original payment was made.
    • Any items purchased at reduced prices during sale periods where a sitewide discount code of greater than 15% is used, this is inclusive of major sales such as Black Friday and holiday sales, can be returned for an exchange or store credit only.
    • If you return an item that was purchased in a BOGO 50% off sale, the refund will result in the discount being removed.
    • Refunds are not applicable on CHIRYŌ Unique Bespoke Panels, as they are all custom-made to order.
    • Light therapy panel stands including the base stand, vertical stand and horizontal stand are eligible to be refunded. Customers who wish to return their product are required to pay the shipping fee.
    • If an order is having items returned for a refund and it included a free gift, the free gift is also required to be returned to be eligible for a full refund. If the free gift is not returned the full price of the gift item will be deducted from any refund provided.

    Sale Items

    • Sale items are non-refundable but can be exchanged or returned for store credit within the 30-day return period.
    • If a discount code of greater than 15% is used this is considered a “sale item”.
    • Discount codes of 15% and lower are not considered a “sale item” and are eligible for a refund.
    • If you place your order before or between sales, there can be no price adjustments made to it.

    Non-returnable items

    The following items cannot be returned for an exchange, refund, or store credit because they are a custom product made to order, or have been assembled.

    • CHIRYŌ Unique Bespoke Panels
    • CHIRYŌ Gift Card
     

    Non Deliverable & RTS Parcels

    If your order is not able to be delivered due to incorrect address information provided, or it has not been collected from the Post Office and it is returned to us, this will result in a return shipping cost of £5.99 being deducted from any refund given, or £5.99 will be payable before we resend the order.

    Any orders that are refused delivery or returned with the parcel marked as “Return to Sender”, will have a £5.99 return shipping fee deducted from the refund, or £5.99 will be payable before we resend the order.

    Returns and exchanges are not applicable on CHIRYŌ Light Therapy Unique Bespoke Panels, as they are all custom-made to order.

     

    Warranty 

    CHIRYO Light Therapy products all come standard with a 12-month-3 year warranty against any manufacturing defects. Our warranty includes any manufacturing defects in materials and workmanship. Manufacturing and material defects do not include normal wear and tear, scratched lenses, or broken frames due to dropping or putting pressure put on them.

     

    Missing or Damaged Parcels

    CHIRYO Light Therapy is not responsible for any lost or damaged packages during transit. We will, to the best of our ability attempt to resolve any issues that may arise during transit, but make no guarantee of such. The tracking number can be used by you to locate any missing parcels with your national carrier.

     

    Cancelling or Changing an Order

    Once you have placed your order it is final and will be shipped as is. 

    If you went through our entire checkout process and confirmed and paid for your order, there is a high chance we will be unable to cancel it.

    However, if you do need to change or cancel an order, please email us immediately and we will do our very best to carry out your request, but please keep in mind we have a high volume of orders and customer service requests so your order may have shipped before our customer service attend to your request.

    We cannot guarantee a change of order after the order is placed so please select your items carefully.

    Any orders that we are able to stop in time and cancel will incur a 5% cancellation fee on item/s cancelled as payment processing fees which are non-refundable.

    Any pre-order items that are cancelled will incur a 5% cancellation fee which will be deducted from any refund given as payment processing fees which are non-refundable.

    If you have any further questions, please email us at: [email protected]

  •  Ask a Question
  Estimated Delivery: Sun, Jun 21 – Tue, Jun 23

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Calm Green Light Bulb – E27 | Migraine & Headache Relief | Narrowband 520nm £19.95

CHIRYŌ Light Therapy Calm Green Light Bulb (E27) for Headaches and Migraines emits a precise, scientifically-studied narrowband 520nm wavelength, clinically shown to alleviate headache symptoms.


Ideal for: work spaces, bedrooms, evening lighting, and headache/migraine recovery spaces.

Flicker-free, low EMF, and suitable for everyday use where standard lighting feels overstimulating.

  • Narrow-band green 520nm
  • Ultra-low blue light (1.5%)
  • Flicker-free + low EMF
  • E27 Edison screw fitting
Headache & Migraine | CALM Green 520nm Lamp £44.95

Blue and red light have both been shown to worsen migraine. Narrowband green light at 520nm is the only wavelength studied that reduces it.

Our CALM Green Lamp emits a precise narrowband 520nm green light with just 2.5% blue content – the wavelength University of Arizona research identified as the most tolerable for migraine and headache sufferers. Select “play icon” displayed on image for lamp in use.

CALM Green Light Lamp is used by:

  • People with migraines (chronic and episodic)
  • Headache sufferers (tension, cluster)
  • People with photophobia and light sensitivity
  • Office workers whose lighting triggers head pain

CALM Green Light Lamp Key features:

  • Narrowband 520nm green light
  • 3 brightness settings 25%, 50%, 100%
  • Rechargeable Up to 18 hours runtime, USB Type-C
  • 360° flexible gooseneck light exactly where needed
  • Flicker-free, no glass, folds palm-size and travel-friendly
  • Ultra-low blue light 2.5%
  • Certified CE, RoHS, FCC – 2 Years Warranty
  • Also available in White
RELAX Sunset Amber Lamp | Rechargeable Type-C | Relax and Sleep £44.95

Standard household lighting contains approximately 25-35% blue light, which signals daytime to the brain and impacts sleep. Our RELAX Sunset Amber Light Lamp is 100% blue light free.

A rechargeable lamp which fits palm-sized into your hand, with a flexible gooseneck and three brightness settings – perfect for everyday evening lighting, bedside use, travel, and any room where you want a healthier alternative to standard lamps. Select “play icon” displayed on image for lamp in use.

RELAX Sunset Amber Light Lamp is used by:

  • Anyone wanting a 100% blue light free home
  • People replacing household lighting with a healthier alternative
  • Families of children prescribed melatonin
  • Neurodivergent Children and Adults

RELAX Sunset Amber Light Lamp Key features:

  • Healthy Lighting 100% blue light free
  • Lamp Spec 3 brightness settings (25%, 50%, 100%)
  • Battery Up to 18 hours, USB Type-C rechargeable
  • 360° flexible gooseneck – light exactly where needed
  • Flicker-free, no glass components, fold palm-sized and travel-friendly
  • Certified CE, RoHS, FCC – 2 Years Warranty
  • Also available in Black
        
Total: £109.85

Description

Calm Green 520nm Light Bulb – Migraine Relief Green Lighting (E27)

If you’re here, chances are you’re not shopping for a “green bulb” for decoration. You’re looking for lighting that feels calmer — because bright household LEDs, office lights, or harsh overhead lighting can trigger or worsen headaches and migraines.

Research into narrow-band green light (around 520–530nm) has reported that this specific colour band can be better tolerated by many migraine sufferers, and in clinical research settings has been associated with reduced headache pain and fewer headache days when used regularly.



How to Use Calm Green Light Bulb

Retreat to a darkened room and allow the gentle green light to fill your space. Spend at least 60 minutes in its soothing illumination (or longer, if preferred).

Additional benefit:
The light output is sufficient for reading, writing, or light tasks, meaning you don’t need to remain completely still during use.

For migraine relief on the go, try our CalmMotion rechargeable handheld migraine device (Green 520nm + 550nm).


 

Green Light for Headache & Migraine Prevention

Install the Calm Green 520nm E27 Light Bulb in table lamps, floor lamps, pendant fittings, or standard E27 ceiling fixtures to create a calmer indoor environment.

It is commonly used for:

  • Migraine relief
  • Tension headaches
  • Cluster headaches
  • Sensory-friendly spaces

Why green lighting can feel different during migraines

Our eyes and brain don’t respond equally to all colours. Many people migraine suffers notice that blue-heavy lighting (common in LEDs and screens) can feel sharper, more stimulating, and more uncomfortable – especially during an attack.

This innovative narrowband 520nm Green LED bulb interacts with ipRGCs, triggering signals that promote a calming sensation for the brain, relaxation & promote better sleep.

Narrow-band 520nm green light bulb is often described as softer and less provoking, which is why some migraine sufferers switch a room or lamp to green during flare-ups or in the evening.


 

FAQ’s Calm Green Light Bulb 520nm (E27)

1) What colour light is best for migraines?

Many people with migraine prefer lower-glare, lower-flicker lighting and often avoid blue-heavy LEDs. Research has highlighted narrow-band green light (520–530nm) as a colour migraine sufferers tolerate better.

2) Do LED lights make migraines worse?

They can do, especially bright, blue-heavy LEDs or bulbs with flicker. If you’re sensitive, switching to a calmer green spectrum and flicker-free lighting can help reduce trigger exposure.

3) Is this a “green light therapy” bulb?

It’s a migraine-friendly household bulb for illumination, using a narrow-band green output commonly discussed in migraine research. It’s not a medical device, but it’s designed to create a more tolerable environment.

4) Is green light better than blue light for headaches?

Blue-heavy light is a common complaint for migraine sufferers. Green is often described as gentler, and narrow-band green has been studied in migraine settings.

5) Will any green bulb work the same?

No. The majority of “green” bulbs are coated or colour-mixed and still include more unwanted wavelengths or flicker. Calm Green520nm narrowband light bulb is designed to be flicker-free with ultra-low blue light (1.5%).

6) Can I use calm green light bulb as office lighting for migraines?

Many customers use calm green lightbulbs it in a desk lamp or side lamp to reduce reliance on harsh overhead lighting, especially in the afternoon/evening.

 


Learn More

Further information on light exposure, melatonin, circadian rhythm, and sleep biology is available in our Healthy Lighting eBook and Wisdom Hub, with supporting references.

Clinical Resources for Green 520nm Lighting Headache and Migraine

University of Arizona – Green Light & Migraines
https://alumni.arizona.edu/arizona-magazine/spring-2018/seeing-green-feeling-relief

Green Light and Transcranial Direct Current Stimulation in Migraine Patients
https://www.mdpi.com/2076-3425/15/11/1209

Green Light Exposure Relieves Chronic Headache Pain
https://pmc.ncbi.nlm.nih.gov/articles/PMC9493681/

Reviewed by CHIRYŌ Light Therapy – December 2025
Specialists in Healthy Lighting and FDA-cleared blue, red, and near-infrared LED light therapy devices.

Specifications

Calm Green 520nm Light Bulb for Headache/Migraines (E27) 

  • Bulb Colour: Calm Green
  • Peak Wavelength: 520nm
  • Bulb Type: LED
  • Lumens: 420lm (40w equivalent)
  • Watt: 7w
  • Dimming: Non-dimming
  • Base Fitting: E27 (B22 bayonet Available)
  • Power Input: AC100-240V 50/60Hz
  • Flicker: Flicker-Free
  • Low EMF
  • Lifespan: Approximately 20,000 Hours
  • Warranty: 2 Years
  • Certification: RoSH, CE, FCC

Additional information

Weight 0.05 kg
Dimensions 11 × 6.5 × 11 cm
Fitting Type

Reviews (25)

25 reviews for Calm Green Light Bulb – E27 | Migraine & Headache Relief | Narrowband 520nm

4.8
Based on 25 reviews
5 star
84
84%
4 star
16
16%
3 star
0%
2 star
0%
1 star
0%

Customer Images

Image #1 from Jack T.
Image #1 from Naomi S.
Image #1 from JohnJohn.M
Image #1 from Jack T.

Jack T.

Fantastic lightbulb

(6) (0)
Image #1 from Naomi S.

Naomi S.

Easy to replace other lighting Nice colour/ambience, can see what i'm doing, kids love it

(0) (0)
Image #1 from JohnJohn.M

JohnJohn.M

worth the pennies great bulb

(0) (0)
Image #1 from Jack T.
Image #1 from Naomi S.
Image #1 from JohnJohn.M
1-5 of 25 reviews
  1. Very happy with the purchase.

    [...]
    (0) (0)
  2. Nice color when switched on

    [...]
    (0) (0)
  3. Doe what is says

    [...]
    (0) (0)
  4. Great Bulb

    [...]
    (0) (0)
  5. Simple solution to reduce headaches

    [...]
    (0) (0)
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calm green light bulb headache migraine bulb CHIRYŌ Light Therapy calm green 520nm E27 light bulb illuminating a lounge, migraine-friendly green lighting with flicker-free low blue light

Calm Green Light Bulb – E27 | Migraine & Headache Relief | Narrowband 520nm

£19.95

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    calm green light bulb headache migraine bulb CHIRYŌ Light Therapy calm green 520nm E27 light bulb illuminating a lounge, migraine-friendly green lighting with flicker-free low blue light

    Calm Green Light Bulb – E27 | Migraine & Headache Relief | Narrowband 520nm

    £19.95

    Ask a Question