Bright Minds, Better Moods: Smart Lighting for Seasonal Affective Disorder

Why Smart Lighting Matters for Seasonal Affective Disorder

In the winter, daylight hours are shorter. As a result, we spend more time in darkness and fewer hours exposed to light. It’s thought that the reduced amount of light may disrupt the body’s internal clock (known as the circadian rhythm) and alter levels of neurotransmitters and hormones, such as serotonin, which affect moods.

While the exact causes of SAD aren’t yet fully understood, winter-pattern SAD is more common in those who experience shorter daylight hours. It tends to occur more frequently in people living in more northerly regions of the USA and those residing farther away from the equator.

As greater amounts of light loss seem to correlate with higher cases of SAD, it’s thought that enhancing light exposure can reduce some people’s symptoms. And that’s where smart lighting can play a part.

You can use smart lighting to simulate daylight, reducing the impact of shorter winter days. It’s one way that you can deploy smart tech to support your circadian wellbeing – something that’s worthwhile all year round for everyone but becomes extra important during certain seasons for those with SAD. 

As smart technology continues to grow in popularity, it’s unsurprising that more people are exploring how technology can support our winter (and general) health. Circadian lighting, alongside automated heating solutions, can make winter a more comfortable time in your home.

How Tunable Lighting Mimics Daylight Cycles

Natural daylight is different to the light we see from a lightbulb. However, advances in technology mean it’s now possible to mimic natural light cycles through artificial sources.

With a well-configured smart lighting system, you can program the lights inside your home to replicate daylight. For example, you can use smart lighting in your bedroom to help you wake up with gradually increasing light that mimics sunrise (even if it’s still dark outside). Equally, you can dim the lighting in the evening to help you wind down.

Beyond timing, you can also adjust the warmth of lights. With tunable smart lighting, you can adjust colour temperature and brightness. Shifting from cool to warm white light will better replicate natural light. You can also utilise blue-toned lights to focus better. The right settings can help regulate your mood and focus.

Full-spectrum LEDs can stimulate serotonin production, which can reduce symptoms of SAD. By combining bulbs that mimic sunlight with timed routines, you’re setting up your home’s lighting to suit your body’s circadian rhythm. Effective smart lighting can improve your sleep, cognitive function, and overall wellbeing. The more in sync your home is with your circadian rhythm, the better.

Lights for SAD – Key Features to Look For

When you’re choosing smart lighting for SAD, consider the following features:

• Tunable white ranges – A light’s brightness is measured in kelvins (Ks). LEDs that cover the spectrum from 2,700K (a warm, white light that gives off a cosy feel) to 6,500K (a cool, bluish white that mimics daylight and aids alertness) will help you achieve the right lighting levels at the right times of day.
• High CRI – A lightbulb’s colour rendering index (CRI) measures how closely it displays colours compared to natural daylight on a scale of 0 to 100. High CRI lights will show your surroundings and objects in their true colours. Generally, a lot of good light bulbs are around 80, but you can find excellent LEDs around 90. The higher the score, the closer your internal light will mimic natural daylight.
• Strong lumen output – The lumen output relates to the amount of brightness a light can emit. The higher the output, the greater the quantity of light being produced and the brighter the room. A lot of indoor lighting is too dim to mimic daylight, so look for a strong lumen output.
• Compatibility with smart systems – To align your lighting with your lifestyle, look for a smart lighting set-up that effortlessly syncs with your existing smart home controls. It will be easier to set up timing automations if it’s part of a joined-up system. Integration that enables automation (such as lights coming on when you enter a room) and control via voice commands is a bonus, too.

A CEDIA-certified installer can advise you on the technical aspects to look for in your lighting that will ensure it will suit your smart ecosystem.

Best Light for Seasonal Depression in the Home Environment

To achieve the best smart lighting for SAD, you’ll need to weigh up technical requirements and design elements. Do you want a SAD lamp by your bedside, automated daylight-mimicking lighting across your home, or both? The best lighting will depend on what kind of solution you’re looking for. The most advanced systems will require multiple elements that all need to work together for the best results.

The components of a smart lighting system can include:

• Bulbs – You can control a smart lightbulb over Wi-Fi or Bluetooth. Usually, you can choose its colour and brightness level. If you’d like, you can use smart lightbulbs as a standalone device (e.g. for adding more blue tones to your home office). Alternatively, they can feature as part of a smart lighting system.
• Fixtures – You’ll need to connect smart bulbs to lighting fixtures. You may want a mixture of fixtures, like ceiling lights and table lamps, to maximise your home’s light.
• Integrated system – With an integrated lighting system, everything you need is contained within one design. Integrated systems might be a more convenient installation option than choosing separate bulbs and fixtures.
• Panels – For more dramatic lighting adjustments, consider light-up panels. They emit a large amount of light from your walls. You might more commonly see these in commercial environments, like offices. However, with complementary interior design, they look great in homes too.

With the right set-up, smart lighting will introduce more light into your life during the dark winter months. While anyone struggling with SAD should seek medical help, optimising your indoor lighting can be an effective solution alongside clinical treatments.

Lighting for Seasonal Depression: Practical Daily Routines

One of the ways you can use smart lighting to reduce some symptoms of seasonal depression is through programming routines that increase the amount of light in your day-to-day living.

You can use time-based automation to adjust your smart lighting so that you’re exposed to:

• Gradual increases in light to simulate the morning daybreak for easier waking
• Balanced afternoon light to help you maintain energy
• Dim, warm evening tones to limit light’s suppressive effect on melatonin (a hormone that helps regulate your sleep cycle)

You can also use a smart lighting system to utilise different lighting in specific areas of your home. For example, if you have a home office, you can isolate cool and bright lights to this area to encourage alertness and productivity.

Light Therapy for Winter Blues vs Smart Lighting

While smart lighting can help ease some feelings of winter blues, it’s different from clinical light therapy and is not a replacement for medical-grade solutions.

Clinical light therapy devices are specialised products that offer high amounts of exposure to lux (the measurement for illuminance). While lumens measure the total light output of devices, lux is specifically about how bright the light appears in a particular area. With a clinical-grade light box or SAD lamp, your body will see a high amount of lux when you are sitting near the device, which can ease SAD symptoms. You can buy these devices yourself, but you may need to consult a doctor about how often you should use them.

As we’ve outlined, you can use smart lighting to brighten your day (and dim your nights) to support your mood and sleep patterns. Having more exposure to ‘daylight’ and a better sleep cycle will ease some feelings of winter blues, but it’s not a clinical treatment for SAD. However, it could complement other, more intensive treatments.

While most smart lighting has lower lux levels than light therapy devices, one of the benefits of a smart lighting solution is that it can cover the whole home – and everyone who lives in it. Consistent ambient exposure may work well for you and your household over time, even if some people will still need individual sessions with high-lux light devices or other types of treatment.

Choosing and Installing SAD-supportive Smart Lighting

Curious about creating your own SAD-supportive smart lighting system? Everyone’s needs are different, but our top tips for creating a set-up that works for you are:

• Research the spectrum of light, output level, and ease of tunability for any bulbs and fixtures.
• Consider zoning so that you can have separate yet connected smart lighting systems for your living room, kitchen, home office, and more spaces. For example, you can have a different wake-up routine in each bedroom to accommodate various alarm times.
• Make use of layered lighting systems. In your kitchen, you can have brighter lighting in task areas for food preparation and dimmable lighting near your dining table to allow for comfortable evening entertaining.
• Consider the best automation strategies for your routine and adjust them for the winter months. You could even program your lighting to automatically adjust for darker days, so that you don’t need to change settings every season.

A Smart Home Professional can help you set up and maintain your smart lighting system. A CEDIA-certified integrator can deal with even the most complex set-ups and ensure everything works with your other smart home tech. While you can buy individual smart bulbs and SAD lamps off the shelf, you’ll need a professional to create a home-wide smart lighting system.