- Installation Video: How to Change the Custom Dynamics ProBEAM LED Halo Fog Light Optics for Vertical Mounting September 15, 2020 13:37 Updated How to Change the Custom Dynamics ProBEAM LED Halo Fog Light Optics for Vertical Mounting Related articles - Installation Video: How To Install ProBEAM® LED Halo Fog Lights for Harley Davidson & Indian Motorcycles - Installation Video: Latch Lightz - One of my favorite upgrades for my Harley-Davidson Motorcycle. - Troubleshooting: Headlight O-ring - Troubleshooting: Saddlebag Light Troubleshooting Guide - Installation Video: How To Install ProBEAM® 1157 Bullet LED Turn Signals for Harley-Davidson® Motorcycles