Most kits now a day are water proof. Just like the McCulloch the ballast is completely water proof...The only thing that worries me about converting to HID is the ballasts! I noticed that the F1 Spec Kit at 365 Motorwerks states that ballasts are completely waterproof. Maybe I'm worring to much since this would be my first HID kit! I really appreciate all your help so far and let me know if I should be worried about the ballasts?