Introduction

Solar streetlights are widely used in Nigeria for estates, streets, compounds, schools, and commercial areas.
They provide bright, free lighting — but only when they work properly.

A faulty solar streetlight leads to:
❌ poor visibility
❌ reduced security
❌ dark streets
❌ wasted investment

In this guide, Solarzone Nigeria explains how to troubleshoot the most common solar streetlight issues and fix them.

⭐ 1️⃣ Solar Streetlight Not Coming On at Night

❌ Possible Causes:

• dead battery

• faulty LED panel

• bad sensor

• wiring disconnection

• damaged controller

• zero charging during the day

✔ Fix:

• test battery voltage

• inspect LED board

• replace sensor

• check controller

• tighten wiring

• clean solar panel

If the battery voltage is below 11V (12V system) or 24V (24V system) → battery needs replacement.

⭐ 2️⃣ Solar Streetlight Only Works for a Few Hours

❌ Causes:

• weak battery

• insufficient charging

• panel shading

• dead cells in battery

• low-efficiency panel

• cloudy weather

✔ Solutions:

• clean solar panel

• remove shading

• replace battery

• upgrade to lithium LiFePO4 battery

• increase panel wattage

Weaker batteries = shorter lighting hours.

⭐ 3️⃣ Solar Panel Not Charging the Battery

❌ Causes:

• dirty solar panel

• broken MC4 connector

• panel crack

• faulty controller

• corroded wires

• incorrect wiring polarity

✔ Fix:

• wash panel

• replace MC4

• inspect for cracks

• test panel voltage

• replace damaged wires

Solarzone can test each component using professional tools.

⭐ 4️⃣ Streetlight Turns On During the Day (Sensor Problem)

If your light comes on in daylight, the photosensor is faulty.

✔ Fix:

• clean sensor

• replace LDR sensor

• check controller settings

Faulty sensors reduce battery life dramatically.

⭐ 5️⃣ Streetlight Is Very Dim or Flickering

❌ Causes:

• weak battery

• loose LED connections

• failing LED chips

• low panel output

• bad controller

✔ Fix:

• replace battery

• tighten LED board wires

• replace LED driver

• use brighter LED module

Dim lighting is usually a battery issue.

⭐ 6️⃣ Solar Streetlight Not Charging During Rainy Season

Nigeria’s rainy season reduces sunlight by up to 60%.

✔ Solutions:

• clean panel more often

• add extra panel

• upgrade to bigger wattage

• reduce nighttime brightness

• use lithium battery for better efficiency

⭐ 7️⃣ Water Damage Inside the Streetlight Head

If water enters:

• LED will fail

• controller will short

• sensor stops working

✔ Fix:

• dry unit

• clean corrosion

• replace seals

• replace controller if burnt

Solarzone installs water-resistant and IP-rated units.

⭐ 8️⃣ Battery Swollen or Leaking

This is dangerous.

❌ Causes:

• overcharging

• battery age

• poor-quality battery

• controller failure

✔ Fix:

Replace battery immediately.
Upgrade to LiFePO4 lithium, which lasts 5–10 years.

⭐ 9️⃣ Controller Malfunction

The controller regulates:
✔ charging
✔ discharging
✔ lighting duration
✔ day/night switching

If faulty:

• light won’t charge

• light won’t turn on

• battery drains fast

✔ Fix:

Replace with a compatible controller.

⭐ 🔟 Wrong Installation Angle or Orientation

Solar panels on streetlights must face:
➡ South (best direction in Nigeria)
➡ with a slight tilt: 10–15°

If facing west or north → poor charging.

✔ Fix:

Reposition panel correctly.

⭐ 11️⃣ Wiring Disconnection Due to Wind or Vibration

Streetlight poles vibrate due to wind.

Over time:

• connectors loosen

• wires break

• panel output drops

• lights flicker

✔ Fix:

• tighten all wiring

• replace brittle cables

• add protective sleeves

⭐ 12️⃣ LED Driver Failure

LED lights use a driver to regulate power.

If the driver fails:

• lights flicker

• turn off randomly

• become dim

• refuse to turn on

✔ Fix:

Replace LED driver module.

⭐ When to Call Solarzone

Contact Solarzone if:
✔ streetlight is not coming on
✔ lights are dim
✔ panel not charging
✔ battery died quickly
✔ controller stopped working
✔ panel cracked
✔ unit flickers
✔ water entered lamp head
✔ poles need servicing

We offer:
⭐ full streetlight repair
⭐ lithium battery upgrade
⭐ controller replacement
⭐ panel testing
⭐ LED module repair
⭐ waterproofing
⭐ complete system replacement
⭐ estate-wide maintenance

🏁 Final Thoughts

A solar streetlight stops working due to:
✔ weak battery
✔ faulty controller
✔ bad panel
✔ wiring issues
✔ sensor failure
✔ water damage
✔ low charging

But the good news?
Most solar streetlight problems can be repaired quickly and affordably.

Let Solarzone Nigeria restore bright, reliable lighting to your home, street, or estate.

💥 Call to Action

⚡ Need solar streetlight repair or upgrade?
Contact Solarzone Nigeria today.

📞 Call/WhatsApp: 09091394722