Harvest indoor light
Indoor photovoltaic modules convert ambient light into electrical energy.
Indoor Light Energy Harvesting
Power low-energy devices with everyday indoor light.
LumaHarvest captures, manages, and stores energy from indoor lighting - enabling low-maintenance sensors, controls, lighting, and smart-home products.
How It Works
From indoor light to usable power.
LumaHarvest combines indoor photovoltaic harvesting, ultra-low-power energy management, long-cycle storage, and load control in one practical energy chain.
Condition weak input
Ultra-low-power circuitry manages a small, variable energy source.
Accumulate energy
A lithium-ion capacitor stores energy for use when the load needs it.
Power the event
Stored energy is released for sensing, communication, control, or light.
Best suited to devices that sleep most of the time and wake briefly to sense, communicate, control, or illuminate.
Measured Performance
Tested under real indoor lighting.
We characterize 50 × 40 mm indoor OPV modules under 3000 K illumination, including open-circuit voltage, short-circuit current, and full I-V and P-V curves.
50-1000 luxMeasured illuminance range
50 × 40 mmIndoor OPV module format
3 / 4 cellTwo module configurations
3 samplesTested per configuration
System output depends on light spectrum, illuminance, exposure time, storage state, conversion efficiency, and load profile. Module measurements should not be read as simultaneous operating voltage and current.
Applications
One energy platform. Multiple low-power products.
The same architecture can be adapted to products that need small amounts of energy intermittently and are difficult or inconvenient to charge.
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Motion Lighting
Use stored energy for brief, motion-triggered illumination in low light.
See FolieRay →⌁
Environmental Sensors
Support periodic sensing and low-duty-cycle wireless reporting.
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Controls & Beacons
Reduce charging and battery replacement for intermittent controls and tags.
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Custom Electronics
Match the photovoltaic source, storage, and load profile to the application.
Reference Application
LumaHarvest Motion Night Light
By day, indoor OPV captures available light and stores the harvested energy. In darkness, the system uses that energy to activate a soft, warm light when motion is detected.
- Indoor light harvesting
- Motion and low-light detection
- Intermittent warm illumination
Harvest · Store · Illuminate
Work With Us
Building a product powered by indoor light?
Share your lighting conditions, load profile, duty cycle, and form factor. We can help evaluate photovoltaic selection, energy management, storage, and reference design options.