Lighting design in 5 minutes.
Instead of hours in planning software.
Upload a floor plan. Place luminaires. Check the light. Lighting plan & quote as PDF.
The lighting design software for electrical contractors: hand-drawn plans welcome, live lux values while placing, parts list and quote as PDF — without an evening of software.
100 % free for electrical contractors — no subscription, no credit card. Sign-up takes a minute.
Why you win more jobs with Lightbuilder
The simple alternative to classic lighting design software like DIALux — three levers that save you time and lift your closing rate.
20× faster than classic software
5 minutes instead of 2 hours. You send the quote before your competitor has even opened a program.
EN 12464-1 reference values built in
Target lux per room type, lumen calculation and colour temperature as a planning aid – you see immediately whether your light is enough.
Customer-ready quote
PDF with cover page, parts list, wiring notes and cost calculation. Ready to send.
Done in 5 minutes
No course needed. No manual. Just do it.
Upload a floor plan
PDF or photo — even hand-drawn. Lightbuilder digitises the plan: rooms, dimensions, doors, windows.
Place luminaires
Downlights, pendants, spots with one click. The lux heatmap shows you live whether the light is sufficient — no training needed.
PDF to the customer
Complete quote including parts list and wiring. Put your logo on it, send it off.
Completely free. No catch — a deal.
Lightbuilder belongs to Luxoo GmbH: you plan for free, and on request we deliver the luminaires at a fixed price across Europe — own brand or your preferred manufacturers, like a wholesaler. With your order you get the quote PDF with your letterhead.
0 €
Planning, digitising, lux check, parts list — all free
24 h
Fixed price for your luminaires — requested with one click, no obligation
Complete lighting plan + quote in one document — plans, heatmaps, parts list, your letterhead. Free with your order
Start with your own project
Register, upload a floor plan, and your plan is ready in five minutes — free and without a credit card. Your projects are kept permanently.
100 % free for electrical contractors — no subscription, no credit card. Fixed price for luminaires on request within 24 h.
Frequently asked questions
- Do I need prior knowledge of lighting design?
- No. Lightbuilder is made for electricians who aren't full-time lighting designers. You place luminaires in the plan with a click — the lux display shows you immediately whether it's enough.
- Which manufacturers are in the catalogue?
- Lightbuilder plans with generic luminaire specs (type, lumens, watts, colour temperature, beam angle) — you stay free in your choice of brand and use your wholesaler's products. Most convenient: with one click you send your parts list to Luxoo, our sister company for luminaires, as a fixed-price request — and get a matching complete quote back.
- What does the quote I send to the customer look like?
- A professional PDF with cover page (your logo), lighting concept overview, parts list, wiring notes and standards notes. Ready to send.
- Does it comply with standards?
- The lux reference values are based on EN 12464-1 and serve as a planning aid — not a normative proof. For a quick, solid first assessment with the customer, that's enough in practice.
- How accurate is the lighting calculation?
- Lightbuilder gives a fast, practical estimate — deliberately not a replacement for a professional lighting simulation built over hours with exact luminaire data sets (IES/LDT). The values are reference values without guarantee; as a contractor you remain responsible for the technical check and execution. Where normative proof matters (e.g. workplace acceptance), professional planning is required.
- What happens to my data?
- Hosted in the EU (Frankfurt). Photos and floor plans stay in your account, are not used for training, and are gone after deletion.
- What does Lightbuilder cost?
- Nothing — the software is completely free for electrical contractors, no subscription, no credit card. We earn when you source your luminaires via Luxoo: fixed price within 24 h, own brand or your preferred manufacturers, delivered across Europe. With your order you get the quote PDF with your letterhead.
- When can I start?
- Right away. Register, upload a floor plan — you'll plan your first project in five minutes.