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built templatelighting-designwith-tool

Lux Level Calculation

Calculates reduced room lighting performance using the lumen method. The template uses room area, luminaire count, luminous flux, utilisation factor, maintenance factor, total lighting power, and target illuminance to report average illuminance, uniformity, power density, and target margin.

inputs

9 fields

context

2 archetypes

engine

with-tool

outputs

4 scored fields

contract fields

Parameter Map

9 inputs to 4 scored outputs

  • room_length_m

    float

    Room length

    2 to 100m

  • room_width_m

    float

    Room width

    2 to 80m

  • luminaire_count

    float

    Number of luminaires

    1 to 500count

  • luminaire_luminous_flux_lm

    float

    Luminous flux per luminaire

    500 to 80000lm

  • utilisation_factor

    floathidden in hard

    Utilisation factor

    0.2 to 0.9-

  • maintenance_factor

    float

    Maintenance factor

    0.5 to 0.95-

  • total_lighting_power_w

    float

    Total installed lighting power

    20 to 100000W

  • minimum_illuminance_lux

    float

    Minimum calculated illuminance

    0 to 2000lux

  • target_illuminance_lux

    float

    Target average illuminance

    50 to 2000lux
average_illuminance_luxtol 0.03

Average maintained illuminance

uniformity_ratio_uotol 0.03

Minimum to average illuminance uniformity ratio

specific_luminaire_power_density_w_m2_100luxtol 0.03

Lighting power density normalised to 100 lux

target_illuminance_margin_pcttol 0.03

Percentage margin against target illuminance

visibility contract

Difficulty Ladder

all_giveneasy

Office room with all values visible

all fields visible
all_givenmedium

Room lighting case selected from office or warehouse layouts

all fields visible
partialhard

Warehouse lighting case with utilisation factor embedded in context

utilisation_factor

scenario bands

Archetype Atlas

office_room

2 contexts

Office room lighting layout

room_length_m6 to 30
room_width_m4 to 20
luminaire_count4 to 80
luminaire_luminous_flux_lm2500 to 10000

office-lighting / lumen-method

warehouse_room

2 contexts

Warehouse lighting layout

room_length_m20 to 100
room_width_m10 to 60
luminaire_count20 to 300
luminaire_luminous_flux_lm8000 to 60000

warehouse-lighting / lumen-method

rendered task

Generation Preview

warehouse-lighting-warehouse-room-preview

difficulty
hard
visibility
partial
archetype
warehouse_room
site context
warehouse-lighting
instruction excerptlux-level-calculation_calc.py

visible fields

  • room_length_m20 to 100 m
  • room_width_m10 to 60 m
  • luminaire_count20 to 300 count
  • luminaire_luminous_flux_lm8000 to 60000 lm
  • maintenance_factor0.6 to 0.85 -
  • total_lighting_power_w1000 to 50000 W
  • minimum_illuminance_lux75 to 300 lux
  • target_illuminance_lux100 to 400 lux

withheld schema

utilisation_factoraverage_illuminance_luxuniformity_ratio_uospecific_luminaire_power_density_w_m2_100luxtarget_illuminance_margin_pct
Warehouse lighting layout. warehouse-lighting. Required outputs: average_illuminance_lux, uniformity_ratio_uo, specific_luminaire_power_density_w_m2_100lux, target_illuminance_margin_pct