Open workbench · 06 tools

Plan the light.
Keep the assumptions.

Each tool runs in your browser, requires no account, and places its formula and limit beside the answer.

Plan · Brightness

Turn room dimensions and an adjustable target illuminance into a transparent lumen range and fixture count.

Shape · Optics

See how beam angle and throw distance change the approximate diameter and footprint of a pool of light.

Plan · Ceiling

Build an even, measured ceiling grid from room size, desired spacing, and a clear wall offset.

Scale · Proportion

Translate ceiling, table, clearance, and fixture dimensions into a practical drop and cord or stem length.

Cost · Energy

Use the wattage on the label, your schedule, and your local electricity price to estimate energy and cost.

Choose · Label

Compare two real labels by brightness, energy, efficacy, rated life, and an editable five-year ownership estimate.