Lighting the Lighthouse

Lighting the Lighthouse is an unmarked quest in the Fallout 3 add-on Point Lookout.

The Note
A note may be found by the light mentioning a truck whose load consisted of Lighthouse Bulbs. The truck may be found northwest of The Ark & Dove Cathedral at a location called Truck Wreckage. There is also one just outside of Haley's Hardware, to the right of the door.

Fixing the Light
Once you find the truck, inside the truck is a large collection of Lighthouse Bulbs. The majority of them are damaged with the exception of only one. Pick up this bulb, then head back to the Lighthouse. Once you get to the top of the Lighthouse, activate the light and the bulb will be changed, then pull the nearby electrical switch, lighting the lighthouse. Also note that after repairing the light house, and coming back later will reveal that your repair-job has not gone unnoticed. Smugglers have taken up residence, one smuggler awaits by the main entrance, while 4-5 more await up the stairs. At the top of the stairs, just before you go out to the lighthouses bulbs, you will find some new loot, consisting of a missile launcher and quite a few missiles, as well as some other light artillery.

YouTube Videos
Completing The Quest Lighting the Lighthouse SikiyDRNA4Q