Illuminate outdoor business signs, monument signs, and internally lit sign cabinets without running utility power to the sign.
Sun-In-One designs solar-powered sign lighting kits for internally and externally illuminated signs. Each system is sized for your sign dimensions, installation location, and required nightly operating hours. Whether you need exterior LED fixtures to light a monument sign or a solar power system for an internally lit sign cabinet, our team can recommend a configuration for your project.





Sun-In-One™ is dedicated to engineering highly efficient solar-powered solutions
for everyday applications. When reliable energy matters, our high-performing off-grid systems deliver the same reliability, efficiency, and safety benchmarks as traditional on-grid power.
To maintain this standard, we continually invest in research and development. As a result, we deliver superior solar products that provide a measurable return on investment. In addition, our solar lighting systems and LEDs withstand harsh environments and extreme operating conditions. They consider local weather patterns, regional solar absorption rates, and ambient light conditions to ensure long-term performance.
Illuminate monument signs, neighborhood entrances, school signs, and commercial property signage with an externally mounted solar LED lighting system. We size each kit around the sign’s dimensions, number of illuminated faces, available sunlight, and required operating hours.
Power compatible LED lighting inside a sign cabinet with a solar panel, battery storage, and charging controls. Our team evaluates the lighting load and installation location to recommend an appropriately sized system for single-sided or double-sided signs.
Sun-In-One lighting systems are the sustainable choice to reduce your carbon footprint.
Our LED lighting uses renewable energy from the sun to store electricity to power ultra-efficient LEDs.































