If salt spray is that excessive, you may want to consider raising the light 1-2 inches or lower the power heads a little. Wash your hands before you handle the lights. I used to clean my bulbs every four to six months with bare hands and damp rag. New bulbs were installed every 12 months. No need to dress like an emergency room surgeon to clean light bulbs.
Over the years, I may have changed 40 bulbs.