Penlabs · From Code to Concrete

Design light with the precision of a system.

Most homes treat lighting as an afterthought. We engineer it from the first sketch — exact lumens, fixture counts, spacing, cost and energy, to the Pen Homes standard.

Complete Calculator

Fixtures, spacing, layered zones, cost & energy — the full plan.

  • Fixture count & spacing
  • Ceiling & daylight aware
  • Cost, energy & ROI

Room Designer

Draw any shape to scale — L, T, or freeform — and see the light.

  • Irregular floor plans
  • Auto fixture placement
  • Live coverage heatmap

Projects

Plan a whole home. Roll up fixtures, lumens and cost.

  • Multi-room rollup
  • Client-ready report
  • Export / import

Lumens Only

A fast, room-aware estimate of the total lumens you need.

  • Instant estimate
  • Imperial & metric
  • Room presets

Intentional, invisible technology

Engineered accuracy

Industry-standard formulas, adjusted for ceiling height and natural daylight.

Layered by design

Ambient, task and accent layers planned the way a designer actually lights a room.

Cost & energy clarity

Up-front cost, annual running cost, CO₂ and the payback of going LED.

Tuned for every space

Pre-configured lighting levels for all common rooms — plus custom.

Kitchen
Living Room
Bedroom
Bathroom
Dining Room
Home Office
Garage
And more…

Ready to light your space?

Choose a tool and get a complete plan in seconds.