What are the best combinations of solar street lamps?

December 29, 2022

Feature

Integrate design and installation easily without any cable.

No need for any external equipment and power support, no maintenance and debugging.

Green&environmentally friendly power and luminous system;

Power on/off and charging by automatic mode and without human action.

Intelligent control in 3 sagments：

timed control

ir sensor control

predawn working control;

Overcharge & over-discharge protection;

19% conversion rate monocrystalline solar panel

Class A LiFePO4 battery with 2000 times 100% depth of discharge cycle life

Bridgelux LED,20% higher than competitors in brightness and 15% higher in lighting times;

MPPT control systems

1. Core Component Matching: The Foundation of a Reliable Solar Street Lamp

Before choosing scenario-specific combinations, it is critical to ensure the four core components (panel, battery, LED, controller) are mutually compatible. Mismatches (e.g., an underpowered panel paired with a high-capacity battery) will lead to insufficient charging, frequent blackouts, or shortened component lifespans.

Component	Key Parameters to Match
Solar Panel	Power (W) should match the total daily energy consumption of the LED + battery charging demand.
Battery	Capacity (Ah) should meet the lamp’s operating needs for 3–7 rainy days (to avoid downtime).
LED Light Source	Power (W) should align with the required illumination (lux) for the scenario; color temperature should suit user comfort.
Controller	Must support the panel’s voltage (e.g., 12V/24V) and battery type (e.g., lithium-ion/lead-acid); include overcharge/over-discharge protection.

2. Scenario-Specific Optimal Combinations

Different use cases have distinct requirements for brightness, runtime, and durability. Below are the most practical combinations for 5 common scenarios:

Scenario 1: Urban Main Roads & Arterial Streets

Needs: High brightness (to ensure traffic safety), long runtime (10–12 hours/night), and high reliability (resistance to heavy rain, strong winds).
Optimal Combination:

Solar Panel: Monocrystalline silicon (200W–300W). Higher efficiency (22%–24%) ensures sufficient charging even in partial sunlight; better low-light performance (charges earlier in the morning/later in the evening).
Battery: Lithium iron phosphate (LiFePO₄, 100Ah–200Ah/12V). Longer lifespan (8–10 years), higher energy density (saves space), and safer (no risk of explosion; withstands high temperatures).
LED Light Source: 50W–100W high-power LED. Provides 5,000–10,000 lumens; color temperature 4,000K–5,000K (cool white, clear visibility for drivers); IP67 waterproof rating (resists heavy rain).
Controller: Smart MPPT (Maximum Power Point Tracking) controller. 30%–40% higher charging efficiency than PWM controllers; supports remote monitoring (to track battery level/panel performance).
Lamp Pole: 8m–12m galvanized steel pole (thickness ≥3mm). Anti-corrosion (hot-dip galvanizing + powder coating); wind resistance (grade 12+).

Scenario 2: Rural Lanes & Residential Communities

Needs: Moderate brightness (to avoid light pollution), low cost, and easy maintenance; often with limited sunlight (e.g., shaded by trees).
Optimal Combination:

Solar Panel: Polycrystalline silicon (100W–150W). Lower cost than monocrystalline; sufficient efficiency (18%–20%) for low-energy demands.
Battery: Sealed lead-acid (SLA, 50Ah–100Ah/12V). Lower upfront cost; mature technology (easy to replace locally); suitable for mild temperatures (0°C–40°C).
LED Light Source: 20W–40W LED. Provides 2,000–4,000 lumens; color temperature 3,000K–4,000K (warm white, comfortable for residents); IP65 waterproof.
Controller: PWM (Pulse Width Modulation) controller. Cost-effective; simple design (low maintenance); includes basic protection (overcharge/over-discharge).
Lamp Pole: 5m–8m aluminum alloy pole. Lightweight (easy to install); corrosion-resistant; suitable for low-wind areas.