Amid accelerating global urbanization, Colombia—an emerging South American economy—faces multiple challenges in residential lighting, including public safety, rising energy costs, and sustainability requirements. Traditional lighting systems not only generate high electricity expenses but also struggle to withstand tropical climates characterized by intense heat and frequent rainfall.
The Sresky Atlas series of smart solar streetlights, built around zero-electricity-cost streetlight projects and perimeter lighting solutions, effectively addresses these challenges while delivering long-term reliability and environmental benefits.
I. Project Background & Needs Analysis
Colombian residential communities are often located in scenic mountainous areas rich in natural resources but constrained by infrastructure limitations. This project focuses on upgrading lighting in a high-end apartment complex, aiming to achieve a secure, sustainable transformation through solar technology.
1.1 Environmental Characteristics and Community Positioning
The project site is located within a residential community in Colombia, distinguished by dramatic mountain terrain and clear skies. These conditions provide abundant solar resources, with average annual solar radiation exceeding 2,000 kWh/m², making the area highly suitable for solar-powered lighting.
Architectural styles within the community range from traditional red-brick houses to modern gray-toned apartment buildings. Landscaped surroundings include trimmed greenery and well-maintained sidewalks, reflecting the community’s high-end positioning. Residents are primarily middle-class families who place strong emphasis on safety, aesthetics, and quality of life.
Colombia’s tropical climate presents additional challenges. Average annual temperatures exceed 28°C, while yearly rainfall often surpasses 1,500 mm. Traditional grid-connected lighting systems are vulnerable to power fluctuations, and complex underground cabling can disrupt landscaping and compromise visual harmony.
1.2 Core Client Requirements: Safety and Sustainability
As B2B stakeholders, the property developer and management team outlined clear and practical requirements:
Safety as a Priority
Nighttime illumination is critical for residential security. Residents frequently walk along internal roads and sidewalks, where strong lighting plays a key role in deterring theft and enhancing visibility. According to Colombia’s National Statistics Institute, over 30% of residential crimes occur at night, highlighting the need for reliable security lighting.
Unified Aesthetics
The community prioritizes visual cohesion. New streetlights must eliminate exposed wiring and preserve the clean lines of courtyards and pathways. Fixtures should complement red-brick architecture and mountain landscapes without causing visual clutter.
Energy Cost Control
With solar panels already installed on rooftops and building façades, the community is committed to renewable energy. Outdoor lighting must operate with zero electricity cost while complying with Colombia’s environmental regulations.
These requirements align precisely with the Sresky Atlas series, whose intelligent control systems and structural reliability make it ideal for solar-powered community safety lighting.
II. Technical Solution Design: Intelligent Assurance with Sresky Atlas Series
To meet Colombia’s residential demands for safety, aesthetics, and operational stability, Sresky delivered an integrated lighting solution centered on the Atlas series. Offering brightness levels from 2,000 lm to 10,000 lm and power options ranging from 20 W to 100 W, the series incorporates multiple core technologies to ensure year-round performance.
2.1 Smart Lighting Configuration for High-Security Environments
Residential security lighting requires both high brightness and intelligent response.
High Lumen Output
OSRAM 3030 LED chips provide up to 230 lm/W luminous efficacy at a 5700K color temperature. Type II optical distribution ensures uniform illumination of sidewalks and courtyards, eliminating blind spots and enhancing deterrence.
PIR Motion Detection
High-sensitivity PIR sensors (120° angle, 8 m detection range) enable low-brightness standby operation at night, instantly switching to full brightness when motion is detected.
M2 Mode configuration includes:
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100% brightness for the first 5 hours
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25% brightness with PIR activation for the next 5 hours
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70% brightness until dawn
This strategy improves security while reducing energy consumption by approximately 30%.
2.2 Dual-Core Technology Addressing Climate and Reliability
Colombia’s heat and heavy rainfall place high demands on luminaire durability. The Atlas series integrates both TCS and ALS 2.2 technologies:
TCS (Temperature Control System)
TCS continuously monitors battery temperature, allowing charging between 0°C and 45°C and discharging between -20°C and 60°C. This system extends battery lifespan to approximately 1,500 cycles, prevents thermal degradation, and ensures safe operation in high-temperature environments.
ALS 2.2 (Adaptive Lighting System)
ALS 2.2 dynamically adjusts output to maintain consistent lighting during extended periods of low sunlight. Even during more than 10 consecutive rainy days, illumination remains stable. High-efficiency monocrystalline silicon solar panels achieve over 23% conversion efficiency, with charging times of 6.7–7.7 hours under normal conditions.
2.3 Optimized Design for Integration and Maintenance
Integrated Structure
Solar panels, batteries, and LED modules are fully integrated into a compact housing, eliminating exposed components. This design blends seamlessly with both red-brick and modern gray architectural styles.
High Protection and Easy Maintenance
With IP65 waterproofing and IK08 impact resistance, combined with dual anti-corrosion treatment, the fixtures are built for long-term outdoor use. Modular construction allows individual components to be replaced directly on the pole, minimizing maintenance costs. Super Remote and APP/PC control systems support DIY parameter settings and real-time battery monitoring.
Hybrid power supply customization is also available to ensure uninterrupted operation during extreme weather events.
III. Project Implementation
The entire project—from design to full deployment—was completed within two months, with the Atlas series’ ease of installation playing a key role.
3.1 Minimal Installation & Site Deployment
Zero Civil Disruption
The off-grid design eliminates the need for trenching or cable installation, preserving existing courtyards and sidewalks. Installation steps include securing the foundation cage, mounting brackets, attaching luminaires, and erecting poles.
Flexible Layout
Streetlights were installed along walkways, public courtyards, and perimeter boundaries at 15–22 m intervals. Models SSL-34A and SSL-36A were recommended. A total of 50 luminaires now cover the entire residential and scenic area.
3.2 Customized Parameter Settings
Using DIY customization via the Super Remote Control, lighting schedules were tailored to community needs. Full brightness is maintained during peak evening hours, while PIR-based sensing operates between 2:00 and 5:00 a.m. Remote monitoring enables real-time optimization and performance tracking.
IV. Project Outcomes & Impact
4.1 Safety and Aesthetic Improvements
Following installation, nighttime safety within the community improved significantly. Bright, uniform lighting eliminated dark corners, encouraged nighttime activity, and reduced crime rates by approximately 20%. The lighting design enhances the community’s modern atmosphere while harmonizing with surrounding mountain views.
4.2 Social Value and Sustainability
Environmental Benefits
Zero electricity costs, combined with rooftop solar systems, create a closed-loop green energy ecosystem. Each fixture reduces carbon emissions by approximately 4 tons annually, fully aligning with Colombia’s environmental standards.
Increased Property Value
Reliable, low-cost security lighting improves resident satisfaction and has contributed to an estimated 10% increase in property value. The project demonstrates the scalability of zero-electricity streetlight solutions in high-end residential developments.
V. Conclusion
This solar street lighting project in a Colombian residential district highlights the successful application of the Sresky Atlas series in premium community environments. By integrating high reliability through ALS and TCS technologies, enhanced security lighting, and zero-carbon operation, Atlas not only illuminates courtyards and walkways but also delivers long-term safety, sustainability, and improved quality of life for residents.
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