AoE3 DatabaseAoE3: DE 100.19.18309 · read from the game files · unofficial

Technology

Somali Lighthouses

Somali Lighthouses (tech ID DENatSomaliLighthouses) is a technology in AoE3: Definitive Edition 100.19.18309 costing 250 wood, 250 coin, 50 s to research at the Trading Post. Effect: Outpost: line of sight +10; Blockhouse: line of sight +10; War Hut: line of sight +10; Castle: line of sight +10.

Quick answers (3)
How much does Somali Lighthouses cost in AoE3?
250 wood, 250 coin, 50 seconds (AoE3: Definitive Edition 100.19.18309).
What does Somali Lighthouses do in AoE3?
Outpost: line of sight +10; Blockhouse: line of sight +10; War Hut: line of sight +10; Castle: line of sight +10. The game says: "Outpost, Dock and Trading Post line-of-sight greatly increased. Enables the Lighthouse ability to be used at Somali Trading Posts, which causes all enemy fortifications, Trading Posts, Docks and naval"
What is the tech ID of Somali Lighthouses?
DENatSomaliLighthouses.

Outpost, Dock and Trading Post line-of-sight greatly increased. Enables the Lighthouse ability to be used at Somali Trading Posts, which causes all enemy fortifications, Trading Posts, Docks and naval units to be revealed for a short time.

What it does

1 further effect (interface, visuals or AI) not listed.

Cost
Coin250Wood250
Research time
50 s
Game ID
DENatSomaliLighthouses

Researched at

Source: techtreey.xml and the Home City files, AoE3: DE 100.19.18309 (build 25040513).