Explore our high-lumen, heavy-duty solar floodlights and integrated street light fixtures manufactured to ISO 9001:2015 quality standards for worldwide deployment.
An in-depth analysis of dual-sided photovoltaic gain, thermodynamic energy storage, and structural customization for municipal and industrial procurements.
Traditional monofacial solar street lights absorb energy exclusively from direct sunlight hitting the front surface of the PV module. In contrast, custom OEM bifacial solar panel street lights harness dual-sided solar absorption by incorporating transparent backsheets or double-tempered glass architectures. The front side collects direct solar radiation, while the rear side captures indirect sky-diffuse light and surface albedo reflection from pavements, concrete highways, sand, and surrounding foliage.
By leveraging advanced N-Type TOPCon (Tunnel Oxide Passivated Contact) cell technology, our bifacial modules achieve a bifaciality factor exceeding 80%. This translates into a 15% to 35% net energy yield increase compared to standard monofacial panels without increasing the wind-load footprint of the luminaire post or mounting structure.
The total energy output ($P_{total}$) of a bifacial solar street lighting system is calculated using the front-side power rating ($P_{front}$), the rear-side power rating ($P_{rear}$), the surface albedo factor ($\alpha$), and the structural tilt factor ($S_{tilt}$):
In municipal highway installations where light-colored concrete or light asphalt is used ($\alpha = 0.30 - 0.40$), the rear-side power boost provides critical energy reserves during extended cloudy weather or low sun angles, ensuring continuous 365-night illumination reliability.
Our integrated MPPT (Maximum Power Point Tracking) controllers operate with 98.5% tracking efficiency. Featuring dual-loop charge regulation, they automatically adapt charge voltage to match real-time albedo spikes captured by the rear bifacial panel.
Built exclusively with Grade-A Lithium Iron Phosphate (LiFePO4) cell packs. Engineered for 4,000+ deep cycles at 80% Depth of Discharge (DOD), featuring built-in Battery Management Systems (BMS) for overcharge, thermal runaway, and short-circuit protection.
Equipped with Philips Lumileds or Bridgelux high-efficiency LED chips delivering up to 210 lm/W. Customized optical lenses provide Type II, Type III, or Type IV roadway distribution profiles with zero dark-sky upward spill light.
Extruded aluminum housings treated with fluorocarbon powder coating passed 5,000-hour salt spray testing (ASTM B117). Aerodynamically certified to withstand extreme wind velocities up to 180 MPH (80 m/s).
Modern municipal contracts increasingly require IoT-enabled solar light poles. Our OEM manufacturing options incorporate NEMA standard sockets and Zigbee/LoRaWAN communication nodes. Facilities management teams can monitor battery health, adjust dimming curves remotely, and collect environmental sensor data from a central dashboard.
To mitigate sand/dust accumulation in arid desert environments and eliminate snow buildup in cold climates, vertical cylindrical bifacial solar pole wraps are rapidly replacing traditional angled flat panels. Vertical bifacial panels collect ambient ground reflection symmetrically while maintaining self-cleaning vertical glass surfaces.
Global tenders now prioritize suppliers providing fully recyclable modular components. By separating battery enclosures from LED luminaires and using non-toxic LiFePO4 chemistry, our custom OEM systems ensure compliance with EU RoHS, REACH, and global ESG carbon offset requirements.
Customizable engineering parameters available for original equipment manufacturing (OEM) and project-based wholesale ordering.
| System Model Tier | LED Luminaire Output | Bifacial Solar Module | LiFePO4 Battery Pack | Charge Controller | Wind & Waterproof Rating |
|---|---|---|---|---|---|
| BIFACIAL-SL-50W | 7,500 Lm (190-210 lm/W) | 100W N-Type TOPCon Dual-Glass | 12.8V 30Ah (384Wh) | 10A Smart MPPT (IoT Ready) | IP67 / IK10 / 180 MPH Rated |
| BIFACIAL-SL-100W | 14,800 Lm (190-210 lm/W) | 180W N-Type TOPCon Dual-Glass | 12.8V 60Ah (768Wh) | 15A Smart MPPT (IoT Ready) | IP67 / IK10 / 180 MPH Rated |
| BIFACIAL-SL-150W | 22,200 Lm (190-210 lm/W) | 260W N-Type TOPCon Dual-Glass | 25.6V 50Ah (1280Wh) | 20A Smart MPPT (IoT Ready) | IP67 / IK10 / 180 MPH Rated |
| CUSTOM OEM HEAVY-DUTY | Up to 44,400 Lm Dual Head | 350W+ Custom Pole Wrapping | Tailored Autonomy (3-7 Days) | Hybrid AC/DC Switch Controller | AASHTO Extreme Wind Compliant |
Since 2006, Solar Lighting International has delivered engineering excellence, stringent quality assurance, and tailor-made lighting infrastructure to public and private sector partners worldwide.
Our manufacturing processes adhere strictly to ISO 9001:2015 standards. Every bifacial PV panel, battery enclosure, and LED circuit board undergoes automated EL testing, thermal imaging, and 100% burn-in aging prior to packaging.
We provide civil engineering teams and municipal planners with comprehensive DIALux photometric simulations. Visualize ground illuminance (Lux/FC), spatial uniformity ratios, and optimal pole spacing before placing volume procurement orders.
For federal, state, and DOT infrastructure projects requiring U.S. domestic sourcing alignment, we supply complete solar light pole systems compliant with Buy American procurement guidelines.
Bifacial solar street lights feature dual-sided solar cell architecture that generates power from both direct sunlight on the front and reflected light (albedo) from the ground or road on the back. This provides a 15% to 35% higher overall energy yield, ensuring faster battery recharge rates, superior winter autonomy, and reliable performance even during overcast conditions.
Rear-side power generation depends on ground surface reflectivity (albedo). Concrete roads and light-colored pavements yield an albedo of 0.30–0.40 (30–40% reflection), snow-covered terrain yields up to 0.80–0.85 (80–85%), and light gravel/sand yields 0.25–0.45. Even standard dark asphalt provides 0.15–0.20 albedo, sufficient to offer a meaningful performance boost compared to single-sided panels.
Yes. As an established OEM/ODM manufacturer, we customize every system parameter including LED wattage, lumen distribution profiles (Type II/III/IV), LiFePO4 battery capacity, PV panel dimensions, mounting bracket angle, pole height, structural finish color, and smart IoT control modules to meet exact tender specifications.
Our street light poles and luminaire housings are manufactured from high-strength die-cast aluminum alloy or hot-dip galvanized steel. They receive anti-corrosion fluorocarbon powder coatings rated for 5,000-hour salt spray exposure (ASTM B117). Aerodynamic mechanical design ensures survival in wind speeds up to 180 MPH (80 m/s), making them suitable for coastal and hurricane-prone zones.
Our N-Type TOPCon bifacial solar panels carry a 25-year power output warranty (maintaining over 80% output at year 25). The Grade-A LiFePO4 battery packs are rated for 4,000+ charge-discharge cycles, delivering an operational service lifespan of 8 to 12 years before requiring standard replacement, drastically reducing long-term municipal maintenance costs.
Standard OEM sample production and custom prototyping typically require 10 to 15 days. Full container production quantities are fulfilled within 25 to 35 days. We accommodate flexible minimum order quantities depending on component customization levels. Contact our sales engineering team to discuss your project timeline.
Partner with an industry-leading manufacturer. Contact our sales engineers today for custom OEM quotes, technical DIALux photometric reports, and competitive volume pricing.
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