Learn how to install and synchronize your NOVSIGHT Halo PRO spotlights with this step-by-step guide. Includes wiring diagrams, DRL sync testing, and troubleshooting tips for both pre-assembled and custom wiring setups.

1. Pre-Installation: DRL Synchronization Test

⚠️ Critical Step: Always test synchronization before final installation.

Why This Test Matters

• Ensures both spotlights operate in the same DRL mode (yellow/white)
• Prevents mismatched lighting after installation
• Verifies proper wiring and control functionality

Test Setup

🔌 Required Components:

• 2× Halo PRO spotlights
• Wiring harness (pre-assembled or custom)
• 12V power source (battery or vehicle power)

Step-by-Step Test Procedure

• Connect the Lights

1. 1. Plug both spotlights into the same harness.
   2. 🔴 Red wire → Battery positive
   3. ⚫ Black wire → Battery negative
   4. ⚪ White wire → Battery positive (if using pre-assembled harness)

• Power On & Observe

1. 1. Turn on the system—default DRL mode should be solid yellow.

• Test Mode Switching
  • The button on the left of the picture is the main light source switch, and the button on the right is the daytime running light button

1. 1. Press the [DRL button] briefly to cycle modes: Yellow → White → Yellow → White
   2. Both lights should change simultaneously.

• Reset If Out of Sync

1. 1. If lights show different modes:
   2. Long-press [Main button] for 5 seconds → DRLs flash 3 times and reset to yellow.
      
   3. Short-press [DRL button] to confirm sync—both should now match.

✅ Test Passed? Proceed to installation.

2. Installation Methods

Option 1: Pre-Assembled Harness (Plug & Play)

Best For: Quick, hassle-free setup

Components:

• Battery Connection
  • 🔴 Red → Positive
  • ⚫ Black → Negative
  • ⚪ White → Positive (safety backup)

• Control Module
  • Decodes signals & stabilizes voltage

• Button Functions
  • [ Main Light Button]
    • Short press: On/Off
    • 5-sec press: Reset DRL sync
  • [ DRL Button]
    • Short press: Cycle modes (Yellow-White)
    • Long press: Turn off

✅ Advantages: No cutting, stable performance, beginner-friendly

Option 2: Custom Wiring (Advanced)

Best For: Integrating with existing switch panels

Steps:

• Cut the Harness → Expose 4 wires:

• • 🟡 Yellow (DRL on/off)
  • ⚪ White (DRL mode control)
  • 🔴 Red (Main spotlight power)
  • ⚫ Black (Ground)

• Wire Connections
  • ⚫ Black → Battery negative
  • 🔴 Red → Battery positive (main power)
  • ⚪ White → Switch positive (DRL mode control) & DRL reset via white wire (5-sec press)
  • 🟡 Yellow → Switch positive (DRL on/off)

⚠️ Important Notes:

• Only works with button-style switches (not toggle/OEM)
• No control module → Less voltage stabilization

✅ Advantages: Customizable switch integration

Conclusion

Whether you choose plug-and-play simplicity or custom wiring flexibility, this guide ensures a smooth installation. Always test DRL sync first, follow wiring diagrams carefully, and refer to troubleshooting tips if needed.

📞 Need Help? Contact NOVSIGHT Support:  service@novsight.com