Heavy-Duty Solar Flood Light – The Guanyao Series for Demanding Outdoor Environments
The UT-50-073 series, known as the Guanyao solar flood light series, represents OKELI’s commitment to delivering professional-grade, off-grid lighting solutions for commercial, agricultural, and industrial applications. Available in 100W, 200W, 300W, and 400W configurations, this grey stamped iron housing fixture is engineered to replace traditional hardwired AC floodlights in locations where grid power is unavailable, unreliable, or prohibitively expensive to install. Whether you need to illuminate a farm entrance, a remote storage yard, a construction site perimeter, or a large agricultural facility, the UT-50-073 series provides the power, durability, and reliability required for continuous outdoor operation.
The True Cost Advantage of Solar-Powered Lighting
When comparing solar flood lights to traditional AC-powered alternatives, the total cost of ownership tells a compelling story. Installing traditional AC floodlights in remote locations requires trenching and laying armored cable — costing anywhere from $15 to $50 per meter depending on terrain. A 300W floodlight running 12 hours a night consumes 3.6kWh daily, adding up to over 1,300 kWh per year in electricity costs. The UT-50-073 series eliminates these expenses entirely. With zero trenching costs, zero electricity bills, and minimal maintenance requirements, the total cost of ownership is dramatically lower than traditional AC solutions.
Superior SMD5054 LED Technology
Each unit in the UT-50-073 series is powered by high-efficacy SMD5054 LED chips — components known for excellent thermal performance and wide beam distribution, making them ideal for area illumination. The LED chip count scales with power requirements:
- UT-50-07301 (100W): 84 LEDs, 278×220×60mm – Ideal for small yards, gates, and farm sheds
- UT-50-07302 (200W): 126 LEDs, 322×246×65mm – Perfect for medium perimeters and parking bays
- UT-50-07303 (300W): 176 LEDs, 354×287×75mm – Suitable for construction sites and freight yards
- UT-50-07304 (400W): 204 LEDs, 420×330×74mm – Designed for large compounds and industrial facilities
The 6500K cool white color temperature delivers crisp, daylight-like illumination that enhances visibility, security, and alertness. The 84-204 LED count ensures exceptional brightness and uniform light distribution across large areas, making the UT-50-073 series suitable for security lighting, perimeter illumination, and commercial applications where maximum visibility is required. The RA80 color rendering index ensures accurate color perception for surveillance and monitoring purposes.
Optimized Solar Energy System with LiFePO4 Battery Technology
Each unit in the UT-50-073 series is equipped with a high-efficiency monocrystalline silicon solar panel and a durable 3.2V LiFePO4 battery. The system configuration scales with power requirements:
- UT-50-07301 (100W): 10Ah/3.2V battery, 6V/15W solar panel (290×350mm) – 4-5 hours charging
- UT-50-07302 (200W): 20Ah/3.2V battery, 6V/30W solar panel (320×350mm) – 4-5 hours charging
- UT-50-07303 (300W): 25Ah/3.2V battery, 6V/30W solar panel (530×350mm) – 4-5 hours charging
- UT-50-07304 (400W): 30Ah/3.2V battery, 6V/35W solar panel (600×350mm) – 4-5 hours charging
The 32700 LiFePO4 (Lithium Iron Phosphate) cylindrical cells represent a technology borrowed from the electric vehicle and commercial energy storage industries. Unlike standard lithium-ion batteries that degrade rapidly when exposed to extreme temperature swings, LiFePO4 chemistry offers several critical advantages:
- Thermal Runaway Prevention: LiFePO4 chemistry is intrinsically safe. Even when the housing reaches high internal temperatures under direct sun, the battery will not swell, vent, or catch fire
- Superior Cycle Life: Standard NMC lithium batteries deliver roughly 500 charge cycles before noticeable capacity fade. LiFePO4 delivers 2,000 to 3,000 full discharge cycles — translating to 6-8 years of reliable service before battery replacement is even a consideration
- Depth of Discharge Tolerance: LiFePO4 can be deeply discharged to nearly 90-100% of its rated capacity without permanent damage, allowing you to use the full battery capacity
Under full sunlight, the system reaches a full charge in 4-5 hours and provides 10-12 hours of continuous operation — enough to cover the entire night.
Durable Stamped Iron Construction with IP65 Protection
The UT-50-073 series features a rugged grey stamped iron housing that provides excellent structural integrity and impact resistance. The stamped iron construction offers several advantages for outdoor lighting applications:
- Superior impact resistance: Protects internal components from physical damage
- Excellent corrosion resistance: Suitable for coastal and high-humidity environments
- Thermal management: Efficient heat dissipation extends LED lifespan
- Robust mounting: Supports secure installation on walls, poles, and ground mounts
The IP65 waterproof and dustproof rating ensures reliable performance in the most demanding outdoor conditions, providing complete protection against dust ingress and protection against low-pressure water jets from any direction. This makes the UT-50-073 series suitable for coastal areas, rainy climates, dusty environments, and regions with harsh weather conditions.
Intelligent Control and Sustainable Operation
The UT-50-073 series features automatic dusk-to-dawn operation for hands-free performance. The intelligent control system ensures the light turns on at sunset and off at sunrise, optimizing battery usage and extending operational life. By eliminating the need for grid electricity, the series significantly reduces operational costs and carbon footprint, making it an environmentally responsible lighting solution for any outdoor application.
Versatile Applications
The UT-50-073 series is ideal for:
- Commercial parking lots and plazas
- Agricultural facilities and farmyards
- Construction sites and temporary installations
- Industrial yards and warehouse exteriors
- Remote storage yards and freight facilities
- Security perimeters and boundary lighting
- Large compounds and industrial facilities
- Sports facilities and recreational areas
OEM/ODM Customization Available
OKELI offers comprehensive OEM/ODM customization services for the UT-50-073 series, including custom wattages, color temperatures, housing colors, branding, and packaging. With certifications including CE, CB, ROHS, TUV, VDE, SAA, ETL, and BIS, OKELI ensures each product meets international standards and customer specifications. Backed by a 2-year warranty and available with competitive bulk pricing, the UT-50-073 series delivers exceptional value for professional lighting projects worldwide.
Ready to work with a trusted partner?
Contact OKELI Team:
📧 sale12@neworb.com
🌐 https://www.okelilamp.com/led-lights-okeli-lighting/
📞 Whatsapp: +86 19129099652
