Architectural lighting consultancy. Body, place, and culture — the three dimensions of human-centric design. Twenty-five years of practice in Southeast Asia, applied to the spaces where people live, work, and arrive.
Our Position
Human-centric lighting starts with the body — circadian rhythm,
visual comfort, luminance. We start there too. But we don't stop there.
A person in a space brings more than a visual system. They bring where
they grew up, what their culture tells them about light and shadow,
what spatial hierarchy communicates in their tradition.
Light that ignores this can be technically correct and
experientially wrong. We design for body, place, and culture —
all three, every project.
Circadian entrainment, melanopic lux, luminance ratios, TM30 colour fidelity and gamut. The biological dimension — designing for how light affects the human system, not just how it appears to the eye.
Geography, climate, architectural tradition, material palette. What equatorial daylight teaches the eye. How tropical context shapes adaptation, contrast threshold, and the baseline against which artificial light is perceived.
What brightness communicates in a specific context. How contrast is achieved without cultural resistance. What darkness means to the person standing in the space — and how design works with that meaning rather than against it.
A selection of work where the full design formula was in place.
Mandapa, A Ritz-Carlton Reserve
Ubud, Bali · Hospitality
W Retreat & Spa
Bali · Hospitality
Indonesian Guest of Honour Pavilion
Frankfurt Book Fair, Germany · Cultural
Apple Developer Academy
Jakarta · Bali · BSD · Surabaya · Educational
TOTO Tower Slipi
Jakarta · Commercial
Taiping Showroom
Jakarta · Retail
Conrad Hotel
Bali · Hospitality
Monumen Nasional
Jakarta · Public · Monument
"Light is about the balance of psychology and physiology, emotion and body rhythm — not watts and brightness."
Abdi Ahsan · Founder, Lumina Group
Lumina Group was founded in 2000 by Abdi Ahsan with the conviction
that lighting design should begin with people, not fixtures.
Twenty-five years later, that conviction has deepened into a framework:
body, place, and culture as the three dimensions of genuinely
human-centric lighting design.
Abdi is a co-author of Lux Sit — a book on the philosophy
and practice of lighting by eight Indonesian lighting pioneers.
He initiated Enlightened Bali and the Light Talk Community,
and teaches at Vlux Academy. Lumina Group supports Luminapedia,
an independent lighting knowledge platform for Southeast Asia.
We are a fee-only practice. Lumina Group receives income strictly from professional fees. We do not accept commissions from suppliers, manufacturers, or contractors — and we do not give them. Every specification we write serves the project and the people who will use it. This independence is non-negotiable.
Connected Platforms
Lumina Group believes the profession grows when knowledge is shared, not gatekept. Two connected platforms extend that belief beyond the studio.
Independent Knowledge Platform
An independent media and knowledge platform for lighting design in Southeast Asia. Founded with the support of Lumina Group. Articles, research, and industry commentary — editorially independent, freely accessible.
Visit LuminapediaLight Talk & Enlightened Bali
Light Talk Community brings together lighting professionals and enthusiasts across Indonesia. Enlightened Bali is an annual gathering advancing the lighting profession — initiated by Abdi Ahsan. Vlux Academy provides dedicated lighting education courses.
Follow the ConversationWe'd like to hear about it. We take on projects where the full design formula is possible — a brief worth pursuing, a team worth working with, an owner who understands what light does to a space.
Start a ConversationHotline
+62 823 1053 6562Location
Jakarta, Indonesia
Available internationally
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