Full-Spectrum Therapy Lamp

In Progress

A research-backed light therapy lamp designed around circadian science, vitamin D synthesis, and seasonal wellness.

Health Hardware Research Health

Overview

A DIY full-spectrum desk lamp designed around circadian science — providing bright, balanced visible light to combat seasonal affective disorder (SAD), boost mood, and regulate circadian rhythm during winter months.

Problem

Winter means dramatically less sunlight (down to ~8 hours in Switzerland, mostly spent indoors). This leads to vitamin D deficiency, mood dips, fatigue, and weakened immunity. Commercial daylight lamps either misrepresent their spectrum or have impractical form factors for desk use.

Approach

Design Priorities

Open Questions

References

Log

Light therapy video storyboard draft

Exported on 2/8/2026 at 18:59:41 GMT+1 from Cursor (2.4.28)

User

@docs/videos/projects/light-therapy/storyboard.md i tried to write a very rough draft of a Storyboard for my first youtube video, tell me what you think and give me some notes on how i can improve in format structure and content

Cursor

Good, I now have a solid picture of the project and the storyboard. Here are my thoughts:

Overall Impression

This is a solid start — you clearly have a compelling personal angle and a real project to show. The core narrative arc is there: relatable winter struggle -> problem (lack of sunlight) -> solution (full-spectrum desk lamp) -> build montage. That’s a proven YouTube maker-video structure. Now let’s sharpen it.

Format & Structure Notes

1. Add clear section headers with timestamps/durations

Right now the storyboard reads more like a stream-of-consciousness script. A proper storyboard should give you (and any collaborator) a quick overview of the video’s pacing. Consider a format like:

## Scene 1 — Cold Open / Hook (0:00 – 0:30)
**Visual:** Wide shot, snowy ridge, hiking toward cabin...
**Audio:** Snow crunching, wind howling. No narration yet.
**Text/Graphics:** None

## Scene 2 — Intro Monologue (0:30 – 1:30)
**Visual:** Cozy fireplace → hard cut to grim commute reality
**Voiceover:** "Is there a better feeling than..."
**Graphics:** Channel logo / subscribe animation

This lets you estimate total runtime, spot pacing issues, and plan your shoot list.

2. Separate visuals from dialogue/voiceover

You’re currently mixing B-roll descriptions, spoken lines, and editorial notes in the same block. Splitting them into Visual, Audio/VO, and Graphics/Text columns (or labeled lines) makes it much easier to plan what you need to film vs. record vs. design in post.

3. Add a clear hook in the first 5-10 seconds

YouTube retention is won or lost in the first moments. Your snowy hiking intro is atmospheric but doesn’t tell the viewer what the video is about or why they should stay. Consider front-loading a teaser of the finished lamp, or a bold claim like: “I built a desk lamp that simulates real sunlight — here’s how.” Then cut to the scenic intro.

4. Mark your TODOs more visibly

You have a couple of TODO: notes inline. Consider using a dedicated section at the bottom or a checklist so they don’t get lost:

## Open Items
- [ ] Research light spectrum theory + comparison graphics
- [ ] Describe final lamp design
- [ ] Plan B-roll shot list for build montage

Content Notes

5. The “reality check” segment is great — tighten it

The contrast between the cozy cabin fantasy and the grim commute/doom-scrolling reality is funny and relatable. But the monologue block (lines 21-25) tries to cover too much in one breath: flu season, vitamin D, tanning beds, tropical vacations, taxes. Pick 2-3 beats max, and let the B-roll do some of the storytelling. For example:

6. The science section needs a plan

Lines 28-34 are the educational core of the video and currently the weakest part. This is where you earn viewer trust. Plan for:

7. The build section is too vague

Lines 40-58 are essentially “then I build it.” This is your main content! Even at storyboard stage, sketch out:

8. You’re missing an outro/CTA

Every YouTube video needs a closing: summarize what you built, share results, tease the next video, and ask for likes/subscribes. Even a placeholder section like ## Outro (testing results + CTA) would help.

9. Minor: spelling and grammar

There are quite a few typos throughout (felling, cozing, sunnlight, heave, lightbull, etc.). Totally fine for a rough draft, but worth a cleanup pass before you use it as a shooting script so you don’t stumble during recording.

Suggested Revised Outline

Here’s a tighter skeleton you could flesh out:

## Hook (0:00 – 0:10)
Teaser of finished lamp on desk, warm glow. VO: "I built a lamp that simulates real sunlight."

## Cold Open – Fantasy vs. Reality (0:10 – 1:00)
Cozy cabin sequence → hard cut → grim winter commute → doom scrolling

## Problem (1:00 – 2:00)
Why winter sucks: less sun, low energy. Common fixes and why they fail.

## Science / Theory (2:00 – 3:30)
Light spectrum comparison. What "full-spectrum" actually means. Why it matters.

## The Idea / Design (3:30 – 5:00)
Sketching process, design rationale, parts list.

## The Build (5:00 – 10:00)
3D modeling → printing → electronics → soldering → assembly. Highlight challenges.

## Testing & Results (10:00 – 11:30)
Lux readings, desk setup, personal experience after using it.

## Outro + CTA (11:30 – 12:00)
Summary, link to files/BOM, subscribe, tease next video.

This is a really promising first video concept — the personal angle, the DIY build, and the practical health benefit give it broad appeal. The main thing to focus on now is planning the science section and fleshing out the build narrative so you know exactly what to film.

User

ok could you revise the format and the spelling and wording mistakes

Cursor

Here’s what I changed:

Format

Spelling & Wording

The content itself is unchanged — just restructured and cleaned up so it works as an actual shooting/planning document.

User

what could be some other cool hooks for the first 10 seconds?

Cursor

Here are some hook ideas that could work for this video, roughly ordered from safest to boldest:

The Result Tease Open on a close-up of the finished lamp clicking on — warm, full-spectrum light flooding your desk. VO: “I built a lamp that gives me real sunlight — at my desk.” Quick, clean, tells the viewer exactly what they’re getting.

The Before/After Split Split screen: left side is you looking drained under harsh blue LED light, right side is you looking alive under your warm full-spectrum lamp. No words needed for 3-4 seconds, then VO: “One of these lights is basically sunlight. I made it.”

The Bold Claim Start on a black screen. Text appears: “Tanning beds give you cancer. Vitamin D pills might be useless. I found a third option.” Cut to a shot of the lamp. This is a bit clickbaity, but it creates immediate curiosity.

The Relatable Pain Open on a POV shot of your alarm going off at 7am — it’s pitch black outside. You drag yourself out of bed, commute in the dark, come home in the dark. VO: “I haven’t seen the sun in three weeks.” Hard cut to the lamp turning on. This one leans into the emotional hook.

The Science Teaser Quick 5-second animation of a light spectrum chart, with a finger pointing at the visible range. VO: “This is what sunlight looks like. This is what your desk lamp looks like. And this… is what I built.” Three beats, fast, sets you up as someone who did their homework.

The Absurd Cold Open You, fully bundled in winter gear, sitting at your desk with a giant UV lamp duct-taped to a broomstick over your keyboard. You look at the camera deadpan: “There has to be a better way.” Funny, memorable, and it frames the whole video as solving a real (if slightly ridiculous) problem.

The Contrast Gag Open on the cozy cabin scene from your storyboard — but only for 3 seconds. Then an alarm clock rips you out of the fantasy. You’re actually on your couch in a dark apartment. VO: “Yeah… that’s not my life. But I figured out how to get a little closer.”

My personal picks would be The Result Tease or The Absurd Cold Open. The first is the safest — viewers know exactly what they’re getting and can decide to stay. The second is riskier but more memorable and shareable, which matters a lot for a first video trying to find an audience. You could even film both and A/B test them with friends before publishing.

User

add the storyboard format again i accidentaly removed it

Cursor

Looks like you reverted back to the original content. Let me reapply the structured format with all the fixes.

Done — the structured format is back with all the scene headers, Visual/Voiceover/Graphics labels, spelling fixes, and the open items checklist at the bottom.

User

lets do some research on sunlight and how it relates to vitamin d production and what does vitamin d for our body

Cursor

Here’s a summary of the research, organized by how it maps to your storyboard sections:

How Sunlight Produces Vitamin D

The key player is UVB radiation (280–315 nm wavelength). When UVB hits your skin, it converts a molecule called 7-dehydrocholesterol (which is naturally present in your skin) into previtamin D3, which then transforms into vitamin D3. The sweet spot is around 295–300 nm — that’s where conversion is most efficient (up to 65% of the precursor gets converted at 295 nm under ideal lab conditions, though real sunlight achieves roughly 20%).

How much vitamin D you produce depends on: season, time of day, latitude (big deal in Switzerland), skin pigmentation, age, and even air pollution.

What Does Vitamin D Do?

Tanning Beds vs. Sunlight — The Spectrum Problem

Natural sunlight UV at Earth’s surface is roughly 90–95% UVA (315–400 nm) and 5–10% UVB (280–315 nm). Tanning beds are designed to maximize tanning (a UVA effect) while minimizing sunburn (a UVB effect), so they skew heavily toward UVA. This means:

So the irony is: tanning beds are bad for you and don’t even give you the vitamin D you’re after.

Important Nuance for Your Video: Full-Spectrum LEDs ≠ UV Light

This is a critical distinction you’ll want to get right in the video. There are two separate health benefits at play:

  1. Vitamin D production — requires UVB radiation (UV light). Full-spectrum desk LEDs typically do not emit significant UV. So your lamp won’t directly produce vitamin D.

  2. Light therapy for SAD / mood / energy — requires bright visible light (10,000 lux), especially in the blue-white range. This works through your eyes (not skin), influencing circadian rhythm, serotonin production, and melatonin suppression. This is what full-spectrum desk lamps actually deliver.

Light therapy at 10,000 lux for 30 minutes in the morning is the first-line treatment for Seasonal Affective Disorder and helps 60–90% of users, with some feeling improvement in 2–4 days. One study found it was more effective than the antidepressant Fluoxetine alone (44% symptom resolution vs. 20%).

What This Means for Your Script

Your storyboard currently frames it as “tanning beds don’t give you vitamin D, but full-spectrum lights do.” The reality is slightly different and actually more interesting:

So the honest pitch for your lamp is: “I can’t bring UVB sunlight to my desk safely, but I can bring the next best thing — bright, full-spectrum visible light that keeps my brain thinking it’s a sunny day.”

This is actually a stronger angle because it’s honest, scientifically backed, and avoids making health claims you can’t support.

Want me to update the storyboard’s science section with these findings?

User

oh my bad, thas right lets add the following, i want the science section to be a bit more fleshed out i would like to have kind stream of consiusnes / reasoning, first the science on why we get sick more often in winter then, then on why vitamin d is so important and how we can get it, then on how the sun helps us create vitamin d with its radiation on, then in comparison on why taning beds don’t, then i ask the question why tanningbeds still feel good because of the light and the warmth then we get into the safer alternative fullspectrum light and through what mechanisms it helps improve our energy etc. the viewer should be able to follow my reasoning, if i missed a step call me out. please write a rough section in this style

Cursor

I see you’ve already been refining the format nicely. Your reasoning chain is solid — I’d just flag one small gap: between “tanning beds still feel good” and “full-spectrum light is the safer alternative,” it helps to explicitly connect why the feel-good part doesn’t need UV at all. That’s the “aha” moment for the viewer.

Let me write the fleshed-out science section.

Done. Here’s how the reasoning chain flows:

  1. Why do we get sick in winter? — Less sunlight, more indoor time, dry air → sets up sunlight as the underappreciated factor
  2. Why is vitamin D important? — Immune system, mood, energy, bones, cardiovascular → establishes the stakes
  3. How does the sun make vitamin D? — UVB (295–300nm) hits skin → converts 7-dehydrocholesterol → vitamin D3 → teaches the mechanism
  4. Why don’t tanning beds work? — Designed for UVA (tanning), minimise UVB, so cancer risk without the vitamin D → the irony
  5. But why do they still feel good? — It’s the bright light hitting your eyes, not the UV on your skin → this is the pivot point, the “aha” moment
  6. The safer alternative — If the feel-good effect comes from visible light, we don’t need UV at all → full-spectrum LEDs give the mood/energy/circadian benefits without the cancer risk → honest about what it can and can’t do (won’t produce vitamin D, but will simulate a sunny day for your brain)

The one gap I mentioned: your original reasoning jumped from “tanning beds feel good” straight to “full-spectrum light.” I added the explicit bridge in Part 5 — explaining that the feel-good effect comes through the eyes, not the skin — which makes the leap to “then we don’t need UV at all” feel natural and logical rather than hand-wavy. That’s the moment where the viewer should go “oh, that makes sense.”

User

okay its good but it doesn’t soundlike me and its difficult for me to reword it when its already writen in a different sytle, lets do it differntly instead of you writing the dialog, draft the scientific reasoning chains as formal text so that i can go through each section and write the dialog how i would word it. mark the sections as todo write dialog

Cursor

Done. Each of the six parts now has the factual content laid out as bullet points and key facts for you to reference, with TODO: Write dialog markers so you can go through them one by one and put it in your own words. The reasoning chain and visual suggestions are still there so you know what to hit — you just fill in how you’d actually say it.

User

while we are at it are there any uvb lamps and are they safe / benefitial

Cursor

Good question — and actually relevant to your video since it fills a gap in the story.

Yes, UVB lamps exist and they work. Here’s the breakdown:

What’s Available

Are They Safe?

Broadly yes, with caveats:

Are They Worth It?

That depends on the person. They’re more expensive than supplements (the Sperti lamp is ~$400–500), and you need to be disciplined about dosing. But for someone who has absorption issues with oral vitamin D, or who wants a more “natural” pathway, they’re a legitimate option backed by real clinical evidence.

How This Fits Your Video

This is actually a nice piece to mention briefly in Part 4 or Part 6 of your science segment — it strengthens your credibility. Something like: “UVB lamps do exist, and they can genuinely produce vitamin D — but they’re medical devices with strict dosing requirements, not something you casually put on your desk.” It reinforces why your project focuses on the visible-light side of the equation: it’s the approach that’s both safe for DIY and addresses the mood/energy problem most people actually feel day-to-day.

User

good points now that we are talking about safety, are there any safetey concerns regarding fullspectrum light therapy?

Cursor

Good instinct — this is worth knowing for yourself and definitely worth a brief mention in the video (builds trust with the audience). Here’s the full picture:

Generally Safe, But Not Risk-Free

Full-spectrum / bright light therapy is considered safe for most healthy people. Side effects when they occur are usually mild and short-lived: headaches, eye strain, nausea, irritability. That said, there are some real concerns:

Blue Light and Eye Health

This is the biggest one for a desk lamp you’ll be using daily:

Bipolar Disorder / Mania Risk

Photosensitising Medications

A surprisingly long list of common medications make your skin and retinas more sensitive to light:

If you’re on any of these, bright light therapy should be discussed with a doctor first.

Medical Contraindications

Light therapy is not recommended for people with:

What This Means for Your Lamp Design

A few practical takeaways:

  1. Colour temperature matters. You might want to include a note in the video about choosing the right LED strip — or even making the colour temperature adjustable (warm for long daily use, cooler for shorter therapy sessions).
  2. Brightness control is essential — which you already have in your parts list (the dimmer dial). Good.
  3. Positioning matters — your lamp design with adjustable rods/hinges is actually ideal. The light should come from above or the side, not be stared at head-on.
  4. Add a disclaimer in the video — something brief like “I’m not a doctor, if you have eye conditions or take photosensitising medication, check with your doctor first.” Standard YouTuber responsibility stuff, but it protects you and shows you’ve done your homework.

This could fit nicely as a brief aside at the end of Part 6 in your science segment — after you’ve sold the viewer on the benefits, a quick “now, a few things to be aware of” section keeps it honest without killing the momentum.

User

while we are at it I was thinking if we should make a extra lamp design or make the lampdesign generic so that we could also use infrarred lightbulb i know that infrared is also used in light therapy, what do you think about that, or would it make more sense to create another video explicitly for the infrared lamp

Cursor

Great question. I’d recommend making it a separate video, and here’s why:

They’re Completely Different Technologies

Full-spectrum bright light therapy and red/infrared light therapy work through entirely different biological mechanisms:

Full-Spectrum (your current project)Red / Near-Infrared
WavelengthsBroad visible spectrum (380–780nm)~660nm (red) + ~850nm (NIR)
How it’s measuredBrightness (lux)Power density (mW/cm²)
PathwayThrough your eyes → brain → circadian rhythmThrough your skin → mitochondria → cellular energy (ATP)
What it doesResets circadian clock, boosts serotonin, suppresses melatoninReduces inflammation, promotes tissue repair, collagen production, joint pain relief
Used forSAD, mood, energy, sleep regulationSkin aging, joint pain, hair regrowth, wound healing, muscle recovery
Usage20–30 min in the morning, facing the lightVaries wildly by application — different distances, durations, power levels

They are not interchangeable. Red light therapy cannot treat SAD. Bright light therapy cannot heal joints. Combining them in one device would mean the lamp tries to do two unrelated things, which muddies your video’s narrative and your design requirements.

Why a Separate Video Is the Better Call

  1. Clearer story. Your current video has a clean arc: winter sucks → sunlight matters → here’s the science → I built a lamp that simulates daylight. Adding infrared would fork the narrative and confuse the viewer about what the lamp actually does.

  2. Two videos are better than one. If people like the full-spectrum lamp video, an infrared lamp follow-up is a natural sequel. You already have the audience primed. “Last time we tackled mood and energy, this time let’s tackle recovery and pain.”

  3. Different design constraints. An infrared therapy panel has very different requirements — specific wavelengths (660nm + 850nm), power density matters more than lux, distance and exposure time protocols vary by body part. It genuinely deserves its own design process.

  4. You could tease it. At the end of your current video, mention: “Now, this lamp handles the visible light side of things. But sunlight also has infrared, and that has a whole other set of benefits — tissue repair, inflammation, recovery. I’m working on something for that too.” Boom — instant hook for the next video.

That Said — A Modular Design Is Still Smart

Even though the videos should be separate, designing your lamp’s hardware to be modular (swappable light strips/bulbs, standardised mounting) is a great engineering choice. You just don’t need to explain or justify it in video one. It becomes a satisfying callback in video two: “Remember the desk lamp from last time? I designed it so the light module is swappable — so let’s snap in an infrared panel and turn it into a recovery lamp.”

That modular reveal would actually be a fantastic hook for the second video.

User

@docs/videos/projects/infrared therapy lamp/storybook.md I made a storybook file for the infrared light lamp, add some quick notes to it so that i rember what we were trying to do for a future video

Cursor

Done. I put in everything we discussed — the science summary, how it differs from the full-spectrum lamp, the modular design callback idea, evidence-backed benefits, and a list of open questions for when you come back to it. Should be enough to pick it back up without having to re-research everything from scratch.

User

perfect now back to our full spectrum ligh video project i renamed the folder @docs/videos/projects/full spectrum therapy lamp/storyboard.md lets add the part about the uvb and sfety of the full spectrum lamp to the science part in the keynotes format we are already using

Cursor

Done. I added two new parts to the science segment:

Both follow the same key-points format with TODO: Write dialog markers so you can word them yourself.

User

lets search the web for good light sources for our lamp, i have looked around a bit but i am unsure what i have to whatch out for in order to find real full spectrum lights that are actually light therapy grade, also what kinds are there are ther like led strips or only bulbs?

Cursor

Here’s everything I found, broken down into what matters for your build:

What to Watch Out For — The Spec Sheet Checklist

When shopping for LED strips/bulbs, these are the specs that separate genuine full-spectrum from marketing fluff:

1. CRI (Color Rendering Index) — Minimum 95+

2. R9 Value — Minimum 80, ideally 90+

3. Spectral Power Distribution (SPD) Chart

4. Colour Temperature — 5000K–6500K for therapy

5. Flicker-Free

6. Lumen Output — You need a lot

What Form Factors Exist

LED Strips (flexible tape)

COB LED Strips

LED Panels / COB Modules

LED Bulbs (E27/GU10 etc.)

Brands Worth Looking At

BrandProductCRINotesPrice (approx.)
Yuji (SunWave)LED strips, panels97–9899% solar similarity claim, publishes SPD charts, popular in DIY SAD lamp builds~$225 / 5m strip
Waveform LightingCentric Home / Centric Daylight strips95+ (R9 >80)Flicker-free, publishes SPD data, has an SPD simulator tool on their site, US-based~$50–80 / 5m strip
Lumicrest (Spectrala)COB dotless strips95+Smooth light output, 24V, dimmable, premium tier~$100+ / 5m
SuperBrightLEDsLux Tape Light97Budget-friendlier high-CRI option, 24V~$50–70 / 5m

Yuji SunWave is the most commonly recommended in DIY light therapy builds because they publish actual spectral data and the curve genuinely matches sunlight closely. Waveform is the best for flicker-free confidence and they have great educational content on their site about what the specs actually mean.

Practical Recommendation for Your Build

Given your desk lamp form factor:

  1. Start with Yuji SunWave or Waveform Centric Daylight strips in 5000K or 6500K. Both publish SPD charts so you can verify the spectrum.
  2. Use aluminium extrusion profiles as the mounting surface — they act as heatsinks and keep the strips cool (heat kills LED lifespan and shifts colour).
  3. Budget for a quality 24V constant-voltage driver that’s flicker-free. Don’t cheap out here.
  4. Do the lux math for your specific design — measure the distance from the strip to your face in your lamp design, then calculate how many lumens you need. You can use the online calculators at lumistrips.com. You may need to double up strips or use a more compact, denser arrangement.
  5. Add a PWM dimmer for brightness control (already in your parts list).

Want me to add any of this to the storyboard or to a separate research/BOM document?

User

hmm any tips on wher i can find lights that are a bit cheaper 200. for a 5m strip is quite pricey

Cursor

Yeah, $200+ for a strip is steep, especially when you might need more than one. Here’s what I found for budget-friendlier options:

Budget Tier — AliExpress (~$15–30 for 5m)

These are the cheapest options. Some DIY builders have used them successfully, but you need to be careful:

The catch: These strips rarely publish SPD charts. The CRI claim might be measured under favourable conditions or simply made up. One YouTube reviewer (GreesLED review) actually tested an AliExpress 95+ CRI strip with a spectrometer and found it was okay but not as good as the spec sheet claimed.

Tip if you go this route: Order one strip first, and if you have access to a spectrometer (or know someone with one — maybe a university lab or a photography friend), verify the spectrum before building your whole lamp around it. You could also film the testing process for the video — that’s actually great content.

Mid Tier — Solid Options (~$50–100 for 5m)

The Smart Play for Your Project

Given that you’re building a desk lamp (not lighting a whole room), you probably don’t need a full 5m strip. Depending on your lamp head dimensions, you might only need 0.5–1.5m of strip. That changes the maths significantly:

Brand5m pricePer-metre costCost for 1m
AliExpress budget~$20~$4/m~$4
Waveform Centric~$65~$13/m~$13
Lumicrest Spectrala~$53~$11/m~$11
Yuji SunWave~$225~$45/m~$45

At 1–1.5m, even the Waveform or Lumicrest strips are only $11–20. That’s very reasonable for verified quality with published spectral data.

My Suggestion

Go Waveform or Lumicrest for the actual build — at the length you’ll need, the price difference versus AliExpress is only $5–15, and you get published SPD charts, flicker-free guarantees, and credibility when you talk about it in the video. Then also order a cheap AliExpress strip and do a comparison test on camera — that’s content gold. “I tested a $4 strip vs. a $13 strip — here’s what I found.” Viewers love that kind of head-to-head.

Also worth noting: since you’re in Switzerland, check shipping costs and import duties. Waveform ships from the US. Lumicrest is Canadian. AliExpress is usually duty-free under CHF 65. You might also search for European resellers of high-CRI strips to avoid customs hassle.