You can get wings for the cooltubes but hoods are better for light not as good as cooltubes for keeping it cool have u done any plant bondage ? 1000s are ideal for penatrating the canapy have you looked at any a/cs
Are you unplugging the ballast from the wall or from the reflector my ballast dosent make any noise when my timer is off but I have had accidents were the reflector comes unplugged from the ballast and makes horrible noises. Hope that makes sence lil high