This all-weather, high-efficiency MPPT solar street light controller features intelligent solar tracking and automatic mains backup. It ensures steady lighting even on long cloudy/rainy days. Supporting NB-IoT, LoRaWAN, LoRaMesh remote control, astronomical timing, adaptive dimming and sensor linkage, it adopts IP67 waterproof design for harsh outdoor use, ideal for municipal, rural, park and campus solar lighting projects.

1. High-Efficiency MPPT Solar Power Utilization
Equipped with a built-in intelligent MPPT algorithm, the controller dynamically tracks solar panels’ maximum power point in real time. It efficiently harvests solar energy under weak light, cloudy and variable weather conditions, boasting higher power generation and solar utilization efficiency than traditional PWM controllers. It maximizes clean solar energy usage, cuts grid power consumption and delivers optimal energy-saving effects for street lighting systems.
2. Mains Complementary Power Supply for 24/7 Stable Lighting
Featuring an optimized solar-mains hybrid power design with automatic intelligent switching, the system prioritizes solar power supply and battery charging on sunny days. When solar generation is insufficient and battery power drains during long overcast, rainy or foggy days, it automatically switches to mains backup power. This eliminates light dimming or outage risks, ensuring consistent, reliable 24/7 year-round lighting performance.
3. Multi-Mode Intelligent Control & Flexible Linkage
The controller supports comprehensive smart control functions for precise lighting management. Its built-in astronomical clock automatically adjusts on/off time based on local sunrise and sunset, eliminating frequent manual debugging. Stepless dimming enables customized brightness for different periods (peak night hours, late-night idle time) to reduce extra energy consumption. Combined with human body and light sensor linkage, it realizes smart adaptive lighting—brightening for pedestrians and dimming/turning off automatically when idle, balancing energy efficiency and user comfort.
4. Multi-Protocol Remote Wireless Communication
Compatible with mainstream industrial protocols including NB-IoT, LoRaWAN and LoRaMesh, it supports stable, low-latency long-distance remote management. Users can check real-time device status, battery voltage, solar generation data and fault alerts via cloud platforms. It also enables remote parameter setting, timing adjustment, fault notification and batch device centralized management, drastically cutting on-site inspection and maintenance costs to achieve unattended smart operation.
5. IP67 Industrial-Grade Waterproof & Durable Performance
Built with a high-strength fully sealed housing, the controller achieves IP67 professional waterproof and dustproof grade. It withstands rain immersion, dust accumulation, extreme high and low temperatures, and various harsh outdoor weather conditions. With strong anti-interference performance, stable operation and a long service lifespan, it reduces equipment replacement and maintenance frequency to lower overall project operational costs.
6. Wide Application Scenarios
Thanks to its outstanding stability, cost-effectiveness and powerful smart functions, this controller fits diverse outdoor lighting scenarios. It is ideal for new construction and renovation of municipal and rural solar street lights, community and park landscape lighting, industrial park road lighting and highway auxiliary lighting. It serves as a core smart component to upgrade traditional solar lighting systems into high-efficiency, eco-friendly smart green lighting solutions.
Email: jimmy@swiott.com
WhatsApp: +86-13809887645
Website:www.swiott.com
Learn more:https://swiott.com/products/scc-120-l-lora-solar-mppt-controller