Products News

Vertical solar tube systems deliver all-weather power for off-grid surveillance through revolutionary columnar design, enabling 360° omnidirectional light capture and exceptional wind resistance. Highly integrated with PV tubes, batteries, and controllers, they support rapid deployment in urban blind spots, remote highways, and temporary monitoring sites. Eliminating grid dependency with ...

This article introduces square vertical Solar Street Lights featuring wiring-free installation, high-efficiency LEDs and durable weather-resistant construction. Designed for gardens, parks, pathways and parking areas, these solutions harness solar energy to provide reliable all-night illumination while eliminating electricity costs and reducing carbon footprint.

Vertical solar bus stop signs integrate ODM Solar Panels and LED technology for off-grid operation. These urban solar lighting systems provide real-time bus info via digital displays, and all-weather safety lighting. As smart city solutions, they reduce carbon emissions and installation costs while enhancing public transport efficiency. Ideal for sus...

Vertical solar tube lights integrate advanced PV/LED tech with 360° light capture and salt-resistant construction. Ideal for parks/coastal zones, they offer customized lighting while slashing energy use by 80% and minimizing maintenance. Pioneering sustainable urban development.

This article explores the innovative design of vertical solar street lights, including 360° photovoltaic layouts, high-efficiency components, and intelligent control systems. It highlights their applications across urban roads, industrial parks, tourist sites, and more. By reducing wind resistance, minimizing land use, and enhancing energy efficiency, vertical solar street lights provide re...

SUNFREE's D4i technology addresses critical solar industry challenges—low efficiency, fragmented systems, and high O&M costs—through AI-driven hybrid control, open protocols, and modular design. This innovation empowers smart cities, vertical photovoltaics, and off-grid solutions, driving the global transition to intelligent, sustainable energy systems.

This article explores SUNFREE’s vertical solar streetlight technology, addressing shading challenges and improving energy efficiency. Features include modular design, multi-angle sunlight capture, and IoT integration for more imaginative urban lighting solutions.

In recent years, the global demand for clean energy has driven rapid innovation in solar technologies. In extreme environments like deserts—characterized by frequent dust storms and harsh winds—traditional flat-panel solar modules often struggle to maintain stable power generation due to design limitations.

In recent years, with the continuous advancement of solar energy technology and the surging demand for green energy, more customers have begun focusing on how to ensure the stable operation of solar systems under harsh weather conditions. Addressing this critical concern, the SUNFREE team, after extensive R&D and rigorous testing, has launched an innovative vertical solar module. Today, we ...

⭐ About PERC Technology　PERC ((Passivated Emitter and Rear Cell))PERC stands for Passivated Emitter and Rear Cell. The PERC solar cell has a presence of a passivation layer at the back side of the cell, which helps to minimize recombination losses and increase light absorption. The key role of the rear-side passivation layer is to reflect light that passes through the silicon cell without being...