Lighting the Tybee Lighthouse

Until recently, one-thousand-watt bulbs were used in most first-order Fresnel lenses. The light produced by a one-thousand-watt bulb, combined with the magnification power of the Fresnel lens, can be seen for over twenty miles at sea and can be measured in hundreds of thousands of candlepower. A second bulb is in place as a backup bulb.

Tybee Island, Georgia · United States