| Region | Location | Access | Reliability |
|---|---|---|---|
| Dam Battlegrounds | Electrical Substation — a car on-site | Reach the substation area and loot the car | Guaranteed (100%) |
| Spaceport | Warehouse interiors | Unlock via the warehouse key/code, then sweep inside | Recurring find |
Guaranteed light bulb drop at Dam Battlegrounds (Electrical Substation)
If you only check one place, make it the Electrical Substation at the Dam Battlegrounds. A car at this substation has a 100 percent chance to drop a Light Bulb. Head to the substation, locate the car, and loot it — no RNG, no detours.
Keep your pack light enough to pick up the stack. If you’re running with a squad, confirm everyone grabs their own; the consistency of this spot makes it ideal for quick turn-ins.
Spaceport route for light bulbs
The Spaceport is another dependable area. Light Bulbs show up inside the Spaceport warehouse, which you access after opening it with the required key or code. Once inside, do a methodical sweep of shelves and utility areas before you rotate out.
Light Bulb item stats and inventory behavior
| Property | Value |
|---|---|
| Category | Electrical |
| Weight | 0.2 kg |
| Stack size | 3 |
Plan your loadout around the stack cap: you can carry three per slot, which keeps weight modest for supply runs.
What light bulbs are used for
Light Bulbs are part of the Electrical loot family and are commonly requested for task turn-ins, including Expedition Caravan needs. They’re also referenced elsewhere in the world: for example, the Raider’s Refuge cellar door shows four light bulbs as indicators on the exterior — that UI is separate from the physical item you collect.
Efficient farming loop
- Start at Dam Battlegrounds → Electrical Substation, grab the guaranteed drop.
- Rotate to Spaceport, unlock and sweep the warehouse.
- While you’re out, keep an eye out for other Electrical-category items (cooling fans, humidifiers) on the same routes to cover multiple turn-ins at once.
This light, direct loop keeps travel time down and stacks reliably, especially if you’re topping off tasks that call for small quantities.
