Design light not only for how it looks, but for how it makes us live.
For as long as humans have shaped their environments, light has been treated as a tool of vision and beauty — yet all along, it has been quietly governing our bodies from within. A Korean engineer named Jinwoo Bae, kept awake by his own restless nights, asked whether light could be designed not merely for what we see, but for how we live. His answer, a technology called Dim2Amber™ and the brand BAENUE it anchors, proposes that the next frontier of architectural lighting lies not in aesthetics alone, but in the invisible dialogue between spectrum and biology.
- Decades of lighting design have optimized for beauty and function while largely ignoring that specific wavelengths of light — particularly around 475 nanometers — directly regulate human sleep, energy, and circadian rhythm.
- Bae's Dim2Amber™ technology couples spectral shift with the simple act of dimming: as a user turns a physical dial, light transitions from energizing daylight-white to warm amber, biologically signaling evening to the body rather than merely appearing darker.
- The technology achieves a 10-to-1 dynamic range in the M/P ratio — a measure of melatonin interference — meaning its dimmest setting suppresses melatonin threefold less than a candle at equivalent visual brightness, a gap conventional color-temperature systems cannot close.
- BAENUE's debut collection — THE NEW LAMP, MINI, and SHIIM, the last co-designed with Danish lighting expert Øivind Slaatto — translates this research into distinct products united by a tactile analog dial, chosen because it can be found and adjusted in complete darkness by touch alone.
- The broader implication is a call to architects and designers to treat the melanopic dimension of light — its biological impact — as equal in importance to its photopic, visual dimension, potentially reshaping how wellness is built into the spaces we inhabit.
Lighting design has long served two masters: beauty and function. But light carries a third, invisible charge — it speaks directly to the body's internal clock, shaping sleep, attention, and energy through the specific wavelengths it emits. This biological dimension has remained largely absent from design practice, even as neuroscience has made its importance undeniable. It took Jinwoo Bae, a Korean lighting engineer struggling with his own sleep, to ask the question that would become BAENUE: what if light were designed not just for how it looks, but for how it makes us live?
Bae's answer arrived during a quiet pandemic dinner at home — the concept for Dim2Amber™, a technology that couples spectral change directly with dimming. As a user turns a physical dial, the light doesn't simply grow darker; it shifts from energizing white toward warm amber, tracing the natural arc of daylight into evening. The critical change occurs around 475 nanometers, the precise wavelength the human circadian system uses to track time. The result is a 10-to-1 dynamic range in the M/P ratio — a measure of melatonin interference — with the dimmest setting suppressing melatonin threefold less than candlelight at the same visual brightness. Conventional color-temperature systems, Bae recognized, change how warm light appears without addressing the specific wavelengths the body actually reads.
The debut collection — THE NEW LAMP, MINI, and SHIIM — brings this research into three distinct forms for different spaces and purposes. All three share the Dim2Amber™ core and a deliberate analog dial, chosen over touch sensors because it offers precision, speed, and something quietly essential: it can be located and adjusted in total darkness by fingertip alone. SHIIM, developed with Danish designer Øivind Slaatto, features over 10,000 micro-perforations that scatter soft, glareless ambient light — a product shaped in part by Slaatto's cultural inheritance of long Scandinavian winters and the Danish reverence for candlelight at the dinner table.
What Bae is ultimately proposing is a rebalancing of design priorities. The photopic dimension of light — its visual beauty and mood — is already well understood by architects and designers. The melanopic dimension, which governs human biology, has been treated as secondary or invisible. To design only for the eye while ignoring the body, he argues, is to tell only half the story. Whether the M/P ratio becomes an industry standard remains open, but the question BAENUE has placed on the table — that light should support our biology, not merely our vision — is one the field will find increasingly difficult to set aside.
For years, lighting design has been a discipline of aesthetics and function—how to make a space beautiful, comfortable, usable. But light does something else entirely, something invisible yet profound: it speaks directly to the body's internal clock. This biological dimension of illumination has remained largely unexplored in design practice, even as neuroscience has made clear that the spectrum of light we're exposed to throughout the day shapes our sleep, our attention, our energy. It took a Korean lighting engineer named Jinwoo Bae, struggling with his own sleep, to ask a different question: what if we designed light not just for how it looks, but for how it makes us live?
Bae founded BAENUE on the back of decades spent manufacturing custom LED light sources for professional and architectural applications. But the real breakthrough came during the pandemic, during a quiet dinner at home, when he conceived of Dim2Amber™—a technology that does something deceptively simple yet scientifically sophisticated. As you turn a physical dial to dim the light down, the spectrum doesn't just get darker; it shifts. Bright, energizing white light gradually becomes warm amber, mimicking the natural progression of daylight into evening. The shift happens in the blue-cyan region of the spectrum around 475 nanometers, the precise wavelength our bodies use to synchronize with Earth's 24-hour rotation. By the time the light reaches its dimmest setting, it produces what Bae calls a 10-to-1 dynamic range in what's known as the M/P ratio—a measure of how much light interferes with melatonin production. At full brightness, Dim2Amber™ matches natural daylight. At its lowest, it reduces melatonin suppression threefold compared to candlelight at the same visual brightness.
The technology emerged from Bae's conviction that conventional color-temperature adjustment wasn't enough. Most lighting systems let you change how warm or cool light appears, but they don't account for the fact that our circadian system responds to specific wavelengths, not just visual warmth. Bae's insight was to couple spectrum change directly with dimming—the most familiar user behavior in lighting. When you dim, the light doesn't just get darker; it biologically shifts toward evening. The idea faced skepticism at first. Some argued users should control brightness and spectrum independently. But once people experienced the prototype, the logic became clear: the interaction felt organic, almost inevitable.
Baenue's debut collection—THE NEW LAMP, MINI, and SHIIM—translates this research into three distinct products for different spaces. THE NEW LAMP is a task lamp with an elongated head that houses the optical shift system. MINI is a portable directional light designed to eliminate glare. SHIIM, developed with Danish designer Øivind Slaatto, features over 10,000 micro-perforations engineered to scatter soft ambient light without glare. Each product looks different, serves a different purpose, yet they share three consistent elements: the Dim2Amber™ technology at their core, a tactile analog interface (a simple physical dial), and design details that solve real problems rather than merely decorate. Bae chose the physical dial deliberately. Touch sensors and step-dimming are easier to manufacture, but he found them frustrating to use. A dial offers precision, speed, and something else: you can find it in complete darkness, guided purely by your fingertips.
The collaboration with Slaatto brought cultural perspective to the work. Denmark has centuries of expertise in artificial light, born from long winters and small windows. Korea's traditional architecture, by contrast, emphasized flooding spaces with natural light through large paper windows. Through Slaatto, Bae learned why Danes value candlelight at the dinner table—for its effect on skin tone—and how scattering multiple light points enriches atmosphere. This insight led to SHIIM DIMMER, a wireless system allowing users to orchestrate multiple lights as a unified experience.
What Bae is really arguing for is a fundamental shift in how designers and architects think about light. The visual dimension—what he calls the photopic aspect—is already well integrated into practice. Designers know how light shapes mood and beauty. But light has another equally critical dimension: the melanopic aspect, which directly governs human biology. To design only for how light looks, ignoring how it makes us live, is to miss half the story. By consciously integrating biological rhythm into spatial design, architects can create environments that possess both visual beauty and genuine human-centric wellness. Whether the M/P ratio becomes a universal standard in the industry remains to be seen. But the question Bae has posed—that light should support our biology, not just our eyes—is unlikely to fade.
Notable Quotes
Light has another equally critical dimension that directly governs human biology: the melanopic aspect. We must design light not only for how it looks but also for how it makes us live.— Dr. Jinwoo Bae, founder and CEO of BAENUE
The Hearth Conversation Another angle on the story
You spent years manufacturing LED sources for professionals. What made you decide to design consumer lamps instead?
My own sleep problems were the catalyst. I realized how profoundly light spectrum affects circadian rhythm, and I had the technical knowledge to do something about it. But I needed the right idea. Dim2Amber™ came to me during the pandemic—suddenly it was clear how to connect biology to behavior.
Why couple spectrum change directly to dimming? Why not let users adjust them separately?
That was the skeptics' argument. But when people experienced it, they understood. Dimming is what everyone already does instinctively. By tying spectrum to that familiar gesture, the biological support becomes effortless, almost invisible. You're not thinking about melatonin—you're just turning down the light.
You chose a physical dial over touch sensors. That seems deliberately old-fashioned.
It's not about nostalgia. A dial gives you precision and speed that digital interfaces don't. And in darkness, you can find it by touch alone. That matters when you're trying to sleep and don't want to turn on your phone or fumble with buttons.
What did you learn from working with a Danish designer?
That light is cultural. Denmark mastered artificial light because of darkness and small windows. Korea's tradition was the opposite—flooding spaces with natural light. Øivind taught me why Danes value candlelight at dinner, how multiple light points create richness. That led us to wireless dimming, so you can orchestrate light throughout a space.
Do you think the M/P ratio will become standard in architecture?
I believe it should. But whether it will—that's for the field to decide. What I know is that designers can no longer ignore the biological dimension of light. We design for how spaces look and function. We must also design for how they make us live.