Hobo SOLAR-15W Installation Instructions
The Hobo SOLAR-15W is a 15-watt solar panel kit designed for outdoor lighting applications, featuring a monocrystalline solar panel, integrated charge controller, weather-resistant construction, adjustable mounting bracket, and compatibility with 12V DC lighting systems. Below are key sections for safety, components, installation, wiring, operation, maintenance, and troubleshooting.
Components Included
Key components: SOLAR-15W monocrystalline panel, mounting bracket with hardware, 10ft weatherproof cable with connectors, charge controller unit, user manual.
| Component | Description |
| Solar Panel | 15W, 12V monocrystalline, aluminum frame |
| Mounting Bracket | Adjustable angle (0-45°), stainless steel hardware |
| Charge Controller | PWM type, overcharge protection, LED indicators |
| Connection Cable | 10ft, UV-resistant, MC4 connectors |
| Hardware Kit | Bolts, nuts, washers, cable ties |
Safety Precautions
Read all instructions before installation.
- Install in dry conditions; avoid rainy/wet weather.
- Wear protective gloves and eyewear.
- Ensure mounting surface is stable and secure.
- Disconnect all power sources before making connections.
- Keep away from children and pets during installation.
WARNING! Do not install near flammable materials. Avoid shading the panel for optimal performance.
Site Selection
Choose location with maximum sunlight exposure.
- Select south-facing location (Northern Hemisphere).
- Ensure no shading from trees, buildings, or obstructions.
- Angle panel between 30-45° for best year-round performance.
- Mount on stable surface: roof, pole, or ground frame.
- Allow at least 6 inches clearance for airflow.
CAUTION! Avoid locations prone to standing water, high winds, or falling debris.
Mounting the Solar Panel
Secure panel using provided bracket and hardware.
- Assemble bracket: Attach arms to panel frame using bolts.
- Position panel: Place at desired location and angle.
- Mark drill points: Use bracket as template.
- Drill holes: Use appropriate drill bit for surface material.
- Secure bracket: Insert anchors (if needed), tighten bolts.
- Adjust angle: Loosen wing nut, set angle, retighten.
Tip: Use level to ensure panel is even. Seal drill holes with silicone to prevent water ingress.
Electrical Connections
Connect panel to charge controller and battery/light.
- Connect panel to controller: Plug MC4 connectors from panel to controller "PV INPUT".
- Connect battery: Attach controller "BATTERY" terminals to 12V battery (red to +, black to -).
- Connect load: Attach controller "LOAD" terminals to light fixture.
- Secure cables: Use cable ties to prevent strain or damage.
- Check polarity: Ensure all connections are correct before powering.
WARNING! Reverse polarity can damage controller. Double-check connections.
System Testing
Verify installation and operation.
- Check connections: Ensure all terminals are tight.
- Observe controller LEDs: Green = charging, Red = low battery.
- Test during daylight: Panel should deliver 12-18V in sun.
- Test load: Turn on connected light; should operate normally.
- Monitor for 24 hours: Ensure stable charging and operation.
Note: Allow 1-2 full sun days for battery to reach full charge if connected.
Operation Guidelines
Optimal performance requires proper care.
- Daily: Panel should face sun for 6+ hours.
- Seasonal: Adjust angle every 3-4 months for sun position.
- Battery: Use deep-cycle 12V battery (not included).
- Load: Do not exceed 15W continuous load.
- Controller: LED indicators show system status.
CAUTION! Do not disconnect under load. Keep connections dry.
Maintenance
Regular maintenance ensures longevity.
- Clean panel surface every 2-3 months with soft cloth and water.
- Check mounting hardware quarterly for tightness.
- Inspect cables for wear, cracks, or rodent damage.
- Clear snow, leaves, or debris from panel surface.
- Verify controller operation monthly via LED indicators.
WARNING! Do not use abrasive cleaners or high-pressure water on panel.
Specifications
- Rated Power: 15W
- Open Circuit Voltage: 21.6V
- Short Circuit Current: 0.94A
- Dimensions: 350 x 300 x 25 mm
- Weight: 2.2 kg
- Cell Type: Monocrystalline silicon
- Operating Temp: -20°C to 60°C
- IP Rating: IP65 (panel), IP44 (controller)
- Warranty: 5 years on panel, 2 years on controller
Troubleshooting
| Symptom | Possible Cause | Corrective Action |
| No output from panel | Shading, dirty surface, bad connection | Clean panel, check for obstructions, verify MC4 connection. |
| Controller LED off | No battery/power, wiring fault | Check battery connection, measure panel voltage. |
| Load not working | Low battery, overload, faulty load | Charge battery, reduce load, test load separately. |
| Reduced performance | Angle wrong, seasonal change, aging | Adjust panel angle, check specifications. |
| Water inside panel | Seal broken, physical damage | Contact support; do not use damaged panel. |
Reset: Disconnect battery and panel for 5 minutes, then reconnect.
Support: 1-800-555-1234; www.hobosolar.com
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