Light bulb factory turns Carbon filament.png filaments and Glass.png glass into Light bulb.png light bulbs, a basic need of Engineers.png Engineers and Investors.png Investors. It can be built only in the Old World.

For a detailed look into the profitability of light bulbs as a consumer product, see this page.

Productivity

It takes 60 seconds to produce 1 ton of light bulbs from 1 ton of filaments and 1 ton of glass so the production rate is 1 ton of light bulbs per minute. Productivity can be changed by adjusting working conditions, using items and electricity.

Light bulbs usage and production chains

Light bulbs fulfill the basic need of Engineers.png Engineers and Investors.png Investors.

Light bulbs can be used during expeditions, they grant 5 bonus points to faith skill per 50 tons. They can be sold for 1768 coins, or purchased for 4420 coins per ton (by passive trading).

All production chains involving light bulbs are listed below.


Light bulb.png Light Bulbs
Balance -7390 · Workers -100 · Artisans -200 · Engineers -1200
Coins 315400 · Timber 92 · Bricks 155 · Steel Beams 114 · Windows 80 · Reinforced Concrete 80
Coal
Coal Mine
1 @ 100%
Cflow-E.png Filaments
Filament Factory
4 @ 100%
Cflow-D.png Light Bulbs
Light Bulb Factory
4 @ 100%
for 4 Light Bulbs/min
Quartz Sand
Sand Mine
2 @ 100%
Cflow-E.png Glass
Glassmakers
2 @ 100%

Alternatively, the coal mine may be replaced with two charcoal kilns for 500Credits.png, 4Timber, 5Bricks, -10Attractiveness.png, 10Balance.png, 30Workers. Supplies:

Items

Some items when equipped in trade unions can have an impact on light bulb factories. Below you can find two lists of such items. The first part of the list contains items affecting only particular buildings including light bulb factories, the list is divided by rarity. The second list contains items affecting every production building in the game.


Common

Sparky.png

Sparky
Common

Likes wires and sockets.
Trade Union Equipped in Trade Union

Affects
Light Bulb Factory Light Bulb Factory
Effects
Workforce Needed: -20%
Expedition Bonus
ExpeditionCrafting.png Crafting: +10


Uncommon

Glass Blower.png

Glass Blower
Uncommon

Now anyone can blow a perfect sphere.
Trade Union Equipped in Trade Union

Affects
Glassmakers Glassmakers
Lanternsmith Lanternsmith
Light Bulb Factory Light Bulb Factory
Effects
Productivity: +30%
Chance of Fire: +30%
Expedition Bonus
ExpeditionCrafting.png Crafting: +10


Physicist.png

Physicist
Uncommon

Wants to put his graduate research to use.
Trade Union Equipped in Trade Union

Affects
Light Bulb Factory Light Bulb Factory
Effects
Productivity: +20%
Expedition Bonus
ExpeditionCrafting.png Crafting: +20


Rare

Mechanised Glass Blower.png

Mechanised Glass Blower
Rare

Blow glass bubbles with modern speed and efficiency.
Trade Union Equipped in Trade Union

Affects
Glassmakers Glassmakers
Lanternsmith Lanternsmith
Light Bulb Factory Light Bulb Factory
Effects
Productivity: +35%
Expedition Bonus
ExpeditionCrafting.png Crafting: +15


Lapidary.png

Science Whizz
Rare

The evidence suggests she's a very bright spark indeed.
Trade Union Equipped in Trade Union

Affects
Gramophone Factory Gramophone Factory
Light Bulb Factory Light Bulb Factory
Effects
Extra Goods
Occasionally produces extra Filaments Filaments every 5th cycle
Substitute Workforce
Instead of its usual workforce, the building employs Worker Workforce.
Expedition Bonus
ExpeditionCrafting.png Crafting: +30


Epic

Oriel's Automatic Blowing Machine.png

Oriel's Automatic Blowing Machine
Epic

Oriel's ingenious machine sometimes gets carried away by blowing bubbles on its own!
Trade Union Equipped in Trade Union

Affects
Glassmakers Glassmakers
Lanternsmith Lanternsmith
Light Bulb Factory Light Bulb Factory
Effects
Productivity: +40%
Chance of Fire: -30%
Expedition Bonus
ExpeditionCrafting.png Crafting: +20


Legendary

Prof. Ram Devi, The Bundle of Energy.png

Prof. Ram Devi, The Bundle of Energy
Legendary

Conducts lightning. His family (from Wittenberg) has the motto, "standing still is a backward step."
Trade Union Equipped in Trade Union

Affects
Gramophone Factory Gramophone Factory
Light Bulb Factory Light Bulb Factory
Effects
Productivity: +50%
Extra Goods
Occasionally produces extra Pocket Watches Pocket Watches every 16th cycle
Occasionally produces extra Glasses Glasses every 14th cycle
Occasionally produces extra Penny Farthings Penny Farthings every 15th cycle
Occasionally produces extra Steam Carriages Steam Carriages every 17th cycle
Occasionally produces extra Sewing Machines Sewing Machines every 13th cycle

Provides electricity
Expedition Bonus
ExpeditionCrafting.png Crafting: +55
ExpeditionDiplomacy.png Diplomacy: +25



Items for all production buildings

Bag of Money.png

Bag of Money
Common

Free money!
Trade Union Equipped in Trade Union

Affects All Production Buildings when activated
When activated
Chance of Riots -40%
Duration:50:00
Destroyed after use
Expedition Bonus
ExpeditionDiplomacy.png Diplomacy: +4
Hand-Blown Grenade.png

Hand-Blown Grenade
Common

Puts out fires.
Trade Union Equipped in Trade Union

Affects All Production Buildings when activated
When activated
Chance of Fire -40%
Duration:50:00
Destroyed after use
Expedition Bonus
ExpeditionForce.png Force: +4


Big Bag of Money.png

Big Bag of Money
Uncommon

Lots of free money!
Trade Union Equipped in Trade Union

Affects All Production Buildings when activated
When activated
Chance of Riots -60%
Duration:01:20:00
Destroyed after use
Expedition Bonus
ExpeditionDiplomacy.png Diplomacy: +5
Certificate of Inspection.png

Certificate of Inspection
Uncommon

Makes it look like your premises are all above board.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: -10%
Chance of Fire: +20%
Dynamo.png

Dynamo
Uncommon

A volatile source of electric power.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: +100%
Explosion Chance: +70%
Provides electricity
Expedition Bonus
ExpeditionCrafting.png Crafting: +30
This item can provide electricity only to buildings that can normally be affected by power plants
Fire Safety Poster.png

Fire Safety Poster
Uncommon

Fewer fires, for little cost.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: +5%
Chance of Fire: -30%
Hall of Collective Property.png Hall of Collective Property
Uncommon
DLC Required
The Anarchist
The people own what they produce! They should be free to join a great queue to collect their quota!
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Productivity: -10%
Maintenance Cost: -15%
Iron Grillwork.png

Iron Grillwork
Uncommon

Reduces the risk of fire.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Chance of Fire: -30%
Old Factory Bell.png

Old Factory Bell
Uncommon

The old toll of toil.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: +10%
Workforce Needed: -20%
Suspended Frosted Glass Grenade.png

Suspended Frosted Glass Grenade
Uncommon

Puts out fires well.
Trade Union Equipped in Trade Union

Affects All Production Buildings when activated
When activated
Chance of Fire -60%
Duration:01:20:00
Destroyed after use
Expedition Bonus
ExpeditionForce.png Force: +5
Writing Machine.png Writing Machine
Uncommon
DLC Required
The Anarchist
Workers are enthused by the new system of written labour notes to reward their efforts.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: +10%
Workforce Needed: -20%


Bureau of Worker-Owned Cooperatives.png Bureau of Worker-Owned Cooperatives
Rare
DLC Required
The Anarchist
The people need somewhere they feel comfortable sharing ideas to help economise during production!
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: -20%
Icon book uncommon 0.png

Certificate of Industrial Standard
Rare

You can make everything on the cheap, and no-one has to know.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: -25%
Chance of Fire: +30%
Copperplate Printer.png Copperplate Printer
Rare
DLC Required
The Anarchist
A new and better printing machine helps distribute labour notes to workers at no maintenance cost!
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Workforce Needed: -30%
Double Iron Grillwork.png

Double Iron Grillwork
Rare

Reduces the risk of fire, and looks nice.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Attractiveness: +2
Chance of Fire: -40%
Icon book uncommon 0.png

Fire Prevention Directive
Rare

An investment that provides your people with the ways and means to combat a blaze.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: +10%
Chance of Fire: -50%
ForkTuN8 Mk.1.png ForkTuN8 Mk.1
Rare
DLC Required
Sunken Treasures
This unpredictable prototype was originally built to gain an unfair advantage at steam car races.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Productivity: +15%
Expedition Bonus
ExpeditionForce.png Force: +10
Crafting Cost
Scrap.png 10 Scrap
Wood.png 15 Wood
Chassis.png 3 Chassis
Source: crafting at Old Nate's workshop in Cape Trelawney
Heat Activated CTC Grenade.png

Heat Activated CTC Grenade
Rare

Very good at putting out fires.
Trade Union Equipped in Trade Union

Affects All Production Buildings when activated
When activated
Chance of Fire -90%
Duration:02:00:00
Destroyed after use
Expedition Bonus
ExpeditionForce.png Force: +6
Huge Bag of Money.png

Huge Bag of Money
Rare

Life-changing sums of free money!
Trade Union Equipped in Trade Union

Affects All Production Buildings when activated
When activated
Workforce Needed -15%
Chance of Riots -90%
Duration:02:00:00
Destroyed after use
Expedition Bonus
ExpeditionDiplomacy.png Diplomacy: +6
ImpersoN8r Nr. 531.png ImpersoN8r Nr. 531
Rare
DLC Required
Sunken Treasures
Some say there's a tiny boy inside pulling the levers...
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Workforce Needed: -15%
Crafting Cost
Scrap.png 15 Scrap
Light bulb.png 3 Light Bulbs
Filaments.png 10 Filaments
Source: crafting at Old Nate's workshop in Cape Trelawney
Iron Factory Bell.png

Iron Factory Bell
Rare

Once heard, cannot be unheard.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Workforce Needed: -30%
Steam Turbine.png

Steam Turbine
Rare

A safe source of electric power.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: +75%
Explosion Chance: +50%
Provides electricity
Expedition Bonus
ExpeditionCrafting.png Crafting: +45
This item can provide electricity only to buildings that can normally be affected by power plants


Bekonin, Spirit of Liberty.png Bekonin, Spirit of Liberty
Epic
DLC Required
The Anarchist
A man with an infectious, impetuous and impassioned urge for action.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Productivity: +25%
Maintenance Cost: -20%
Workforce Needed: -25%
Expedition Bonus
ExpeditionDiplomacy.png Diplomacy: +50
Iron Factory Bell.png

Extremely Loud Bell
Epic

A worker's gift. "Just in case you have to wake us up, boss. We can be bunch of sleepyheads sometimes..."
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: -25%
Workforce Needed: -50%
Feras Alsarami, the Persuader.png

Feras Alsarami, the Persuader
Epic

Feras' voice puts people in a comforting trance, letting them lead happier, more focused and productive lives.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Productivity: +50%
Maintenance Cost: -10%
Workforce Needed: -10%
Chance of Riots: -20%
Expedition Bonus
ExpeditionDiplomacy.png Diplomacy: +20
Trait: Hypnotist
Icon book rare 0.png

Fizgig's Fabulous Fireproofing Failsafe
Epic

Better factory materials cost more money, but it's bound to be worth it in the end, argues Lord Fizgig.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: +15%
Chance of Fire: -70%
ForkTuN8 Mk.2.png ForkTuN8 Mk.2
Epic
DLC Required
Sunken Treasures
A reinforced variant, which in spite of the minor combustion risk, takes all the labour out of warehouse work.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Productivity: +25%
Expedition Bonus
ExpeditionForce.png Force: +20
Crafting Cost
Scrap.png 20 Scrap
Wood.png 10 Wood
Chassis.png 5 Chassis
Caoutchouc.png 10 Caoutchouc
Source: crafting at Old Nate's workshop in Cape Trelawney
Hall of Mutualist Ideologies.png Hall of Mutualist Ideologies
Epic
DLC Required
The Anarchist
An airy space, not at all empty, but brimming with ideas for economisation! Self-sufficiency; over-abundance! Those are the topics for discussion at this venue's very functional table.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: -25%
Workforce Needed: -40%
Iron and Glass Grillwork.png

Iron and Glass Grillwork
Epic

Reduces the risk of fire, and looks divine.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Attractiveness: +3
Chance of Fire: -50%
Oxford Electrical Bell.png

Oxford Electrical Bell
Epic

Shirkers begone! The shrill cry of a new day has sounded!
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: -20%
Workforce Needed: -40%
Pertwee's Turbo Generator.png

Pertwee's Turbo Generator
Epic

A highly-efficient and safe source of electrical power!
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: +50%
Provides electricity
Expedition Bonus
ExpeditionCrafting.png Crafting: +60
This item can provide electricity only to buildings that can normally be affected by power plants
Printing Press.png Printing Press
Epic
DLC Required
The Anarchist
The labour notes are now so beautifully typeset and presented, they really look like they're worth something! A sign of the wonders of anarchy to come!
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Productivity: +25%
Workforce Needed: -40%
SubordiN8 Nr. 360.png SubordiN8 Nr. 360
Epic
DLC Required
Sunken Treasures
Compensates for its faithfulness in performing simple human tasks by being wilfully blind.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Workforce Needed: -30%
Crafting Cost
Nice Scrap.png 15 Nice Scrap
Light bulb.png 5 Light Bulbs
Work clothes.png 5 Work Clothes
Filaments.png 15 Filaments
Source: crafting at Old Nate's workshop in Cape Trelawney
Icon book rare 0.png

Von Malching's Labour Law Proposal
Epic

Von Malching fought hard at the council to ensure children might also enjoy supervisory roles in factories.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Maintenance Cost: -50%
Chance of Fire: +40%


Angela "Meg" Iver, The Polyvalent.png

Angela "Meg" Iver, The Polyvalent
Legendary

Angela has an astonishing intellect, but it's her capacity to improvise that makes her really sparkle.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Workforce Needed: -20%
Provides electricity
Expedition Bonus
ExpeditionCrafting.png Crafting: +55
ExpeditionMedicine.png Medicine: +25
Trait: Diver
This item can provide electricity only to buildings that can normally be affected by power plants
ForkTuN8 Mk.3 - Very ForktuN8 Indeed.png ForkTuN8 Mk.3 - Very ForktuN8 Indeed
Legendary
DLC Required
Sunken Treasures
Old Nate's baby. Prone to the odd tantrum, but provides the lift everyone needs in times of logistical disconsolation.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Productivity: +35%
Expedition Bonus
ExpeditionForce.png Force: +30
Crafting Cost
Nice Scrap.png 20 Nice Scrap
Timber.png 20 Timber
Chassis.png 10 Chassis
Steam motors.png 3 Steam Motors
Source: crafting at Old Nate's workshop in Cape Trelawney
Human IncarN8 Nr. 9.png Human IncarN8 Nr. 9
Legendary
DLC Required
Sunken Treasures
The nearest thing Nate has to a companion. Unlike a human servant, it won't complain when he kicks it for setting things on fire.
Trade Union Equipped in Trade Union

Affects All Production Buildings
Effects
Workforce Needed: -50%
Crafting Cost
Special Scrap.png 15 Special Scrap
Light bulb.png 5 Light Bulbs
Work clothes.png 10 Work Clothes
Filaments.png 15 Filaments
Source: crafting at Old Nate's workshop in Cape Trelawney


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