Lumen Green

Towards a New Generation of Sustainable Temporary Lighting

Every innovation begins with a question.
Lumen Green begins with one of the oldest: can light exist without flame?

A Simple Question

Every year, millions of candles are lit in cemeteries, places of worship, memorial ceremonies, public events and celebrations.

Despite centuries of technological progress, the concept has changed very little. Traditional candles still rely on combustion, consume wax or paraffin, generate heat, require plastic or glass containers, and eventually become waste.

This project begins with a simple question:

Can we recreate the emotional experience of candlelight without flame, electricity or conventional plastic?

Lumen Green was born to explore this possibility.

A large outdoor trash bin overflowing with discarded LED candles, plastic housings and used batteries. The image illustrates the amount of electronic waste generated by disposable battery-powered memorial candles.

The Vision

Lumen Green is an open research project exploring a new generation of temporary lighting systems.
Rather than improving the traditional candle, the goal is to rethink it entirely.
The concept investigates a disposable lighting device made primarily from biodegradable or naturally derived materials, capable of producing cold light for a limited period of time without combustion or electrical power.

Why This Project?

Lumen Green was never conceived as a replacement for the traditional candle.

A real flame carries a unique symbolic, emotional and cultural value that technology cannot fully replicate.

The inspiration behind this project comes from a different observation.

In many situations—such as cemeteries, memorial sites and public events—the traditional candle is increasingly being replaced by battery-powered LED alternatives.

While practical, these products often rely on plastics, electronic components and disposable batteries, creating a significant environmental footprint for an object designed to provide only temporary light.

Rather than replacing a flame with electronics, Lumen Green explores a different path.

The goal is to investigate whether temporary light can be generated through sustainable materials, simple mechanical activation and controlled luminescence, without combustion, electricity or conventional plastic.

Lumen Green is not intended to compete with the traditional candle.

It is an attempt to offer a more sustainable alternative wherever the flame has already disappeared.

A Different Architecture

Rather than increasing the amount of chemical energy available, the project focuses on controlling how that energy is released.

The originality of this project does not lie in a single chemical formulation.

It lies in the overall architecture of the system.

The proposed device consists of two separate chambers.

The lower chamber contains a hydrogel matrix designed to host the luminescent system.

The upper chamber contains an activating solution.

During storage, both components remain completely isolated.

Activation occurs through a simple mechanical action, such as pressing the body of the device or removing an internal separator.

Once activated, the liquid slowly reaches the hydrogel by gravity.

Instead of allowing an immediate reaction, the gel regulates the diffusion of the reagents, transforming a normally rapid chemical process into a controlled light emission over time.

The current research objective is to achieve a cold light lasting approximately one to two hours.

Concept illustration of the Lumen Green research project. The proposed architecture combines biodegradable materials, a dual-chamber activation system and hydrogel-controlled luminescence to explore a sustainable alternative to disposable LED candles.

Why a Hydrogel?

Within this concept, the hydrogel is much more than a container.

It becomes an active regulator of the reaction.

By modifying its viscosity, porosity and composition, it may be possible to control:

  • Initial light intensity
  • Emission duration
  • Light uniformity
  • Reagent consumption rate

Rather than increasing the available chemical energy, the project focuses on controlling how that energy is released.

The Lumen Green Research Direction

Current research uses known chemiluminescent systems as an initial experimental platform.

The objective is not to reproduce existing formulations.

Instead, Lumen Green aims to inspire the development of progressively more sustainable luminescent systems capable of reducing hazardous substances, reagent concentrations, environmental impact and post-use residues.

Lumen Green therefore represents a research direction rather than a specific molecule or a final chemical formulation.

Materials Under Investigation

The project prioritizes simple, widely available and environmentally conscious materials.

Current research includes:

  • Structural paper
  • Translucent paper
  • Regenerated cellulose
  • Agar
  • Alginates
  • Natural starches
  • Plant-based waxes such as carnauba wax

The final material selection will depend on laboratory testing and experimental validation.

Potential Applications

The proposed architecture could be adapted to several applications, including:

  • Memorial and cemetery candles
  • Flameless ceremonial candles
  • Temporary lighting for public events
  • Artistic installations
  • Commemorative lighting devices
  • Low-impact disposable lighting systems

The ambition is not simply to replace a candle.

The ambition is to create an entirely new category of temporary lighting devices.

Research Status

Lumen Green is currently a concept research project.

The ideas presented here are working hypotheses that require experimental validation, material testing and technical evaluation.

Publishing the project at this stage reflects the philosophy of Officina Lumen: sharing ideas early encourages collaboration, discussion and continuous improvement.

Join the Research

Innovation grows through collaboration.

If you are a chemist, materials scientist, engineer, designer, researcher, student or simply curious about sustainable technologies, your ideas and feedback are welcome.

Every contribution may help transform this concept into a practical solution.

Research Information

Research Series: OL-R001

Project: Lumen Green

Version: 1.0

Status: Concept Research

First Documented: June 2026

First Public Disclosure: June 2026

The original technical documentation of this project was archived with a verifiable timestamp prior to its public disclosure in order to document its development history and authorship. This publication is intended to encourage discussion, collaboration and further research.