Lightning rod protects from Lightning strikes that originate 10 Tiles from the lightning rod's placement spot. Lightning ignites flammable items such as Grass Tufts, and Chest within 1 tile of its target. Lightning can possibly target players 7.5 tiles from its origin, and hence it may originate just outside the lightning rod 10 tiles protection radius and strike a player 2.6 tiles away from the lightning rod. A single lightning rod thus only provides 2.5 tiles radius of lightning-proof coverage for the player. The area between 2.5 and 10 tiles radius has some lightning protection, but it is not 100%.
Placing a lightning rod every 14 Tiles would optimize the number of lightning rods for 100% lightning coverage. However, considering that lightning rods are rather cheap, and that there may be overlapping coverage with Ice Flingomatic to extinguish any fire from lightning, base layout may not need to optimise around lightning rods. 2-4 lightning rods, instead of 1, is still recommended for a base of 1-6 Ice Flingomatics.
The Lightning Rod also provides a small radius of light (but not heat) after absorbing a Lightning bolt, which is just bright enough to prevent Charlie from attacking. The light lasts for up to a 1440 seconds, but the light will darken at daybreak after 960 seconds.
Downloadable Content
In all DLCs the cost to craft a Lightning Rod is increased to 4 Gold Nuggets.
If a Lightning Rod and a Volt Goat are in close vicinity in the Reign of Giants DLC, they both have an equal chance of being struck by Lightning.
In Don't Starve Together WX-78 can use a recently-struck Lightning Rod to receive charge.
Tips
On a boat, using a Lightning Conductor can save room that would have been taken up by the lightning rod.
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/DLC/function/tags of these Things. Some of them are not even .
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/DLC/function/tags of these Things. Some of them are not even .
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/DLC/function/tags of these Things. Some of them are not even .
Attention: The following categories are only for the players look up the page based on their first impression, they have nothing to do with the actual categories/DLC/function/tags of these Things. Some of them are not even Structures.