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# Factorio Runtime Docs Version 2.0.77

# Product - Runtime Docs

## Product :: union

Returns one of the subtypes, depending on the value of `type`.

#### Union members

ItemProduct | Returned when the `type` is `"item"`.
FluidProduct | Returned when the `type` is `"fluid"`.

#### Examples

    -- Products of the "steel-chest" recipe (an array of Product)
    {{type="item", name="steel-chest", amount=1}}

    -- Products of the "advanced-oil-processing" recipe
    {{type="fluid", name="heavy-oil", amount=1},
      {type="fluid", name="light-oil", amount=4.5},
      {type="fluid", name="petroleum-gas", amount=5.5}}

    -- What a custom recipe would look like that had a probability of 0.5 to return a
    -- minimum amount of 1 and a maximum amount of 5
    {{type="item", name="custom-item", probability=0.5, amount_min=1, amount_max=5}}

Concept used in

- LuaItemPrototype::rocket_launch_products
- LuaRecipe::products
- LuaRecipePrototype::products
- LuaRecipePrototype::main_product
- LuaTilePrototype::mineable_properties
- MineableProperties