IES Photometrics & DIALux for Road Lighting (Inputs + Checklist)
Roadway lighting should be verified with photometrics, not wattage charts. This center explains what to request (IES files), what inputs are required (DIALux-ready), what deliverables to expect (report + layout), and how to write RFQ clauses that make bids comparable.
Onde este recurso se encaixa
- Use isso para: road lighting verification (spacing, uniformity, targets) with IES/LDT + simulation.
- Guias recomendados: Altura e espaçamento do poste · Comparar cotações · CCT/CRI/ângulo de feixe
- Tipos de sistema relacionados: All-in-One · Luzes solares de poste · Decorativo · Tipo de divisão
- Procurement templates: Kit de solicitação de cotação e solicitação de cotação
Pacotes recomendados
Photometrics and spacing validation should happen before quote comparison.
The 60-Second Rule (Roadway Projects)
A roadway bid is NOT verifiable unless it includes:
1) IES photometric files for the offered optics (not generic)
2) A DIALux-ready input set (road geometry + pole arrangement)
3) A report that shows spacing, uniformity, and glare-related metrics (as applicable)
4) A clear assumption list (mounting height, tilt, maintenance factor, target class)
If any item is missing, spacing claims should be treated as “Unverified / High Risk”.
What an IES File Is (and when it’s mandatory)
An IES file is a standardized electronic photometric data file that describes a luminaire’s light distribution. It is used by lighting software to calculate roadway performance.
When IES is mandatory
- Highways / main roads
- Any project where pole spacing and uniformity are important
- Any project requiring an auditable lighting report
When IES is still recommended
- Streets with mixed traffic and pedestrian conflict
- Large outdoor areas where glare complaints are possible
IES File Acceptance Checklist (Procurement-Ready)
Before using an IES file to justify spacing or compliance, confirm:
A) Correct file identity
- The IES file is provided for the exact offered model and optic
- The optic family / distribution is named clearly (not “all-purpose”)
B) Usability in software
- File imports successfully into DIALux (or other common software)
- No corrupted or missing data blocks
C) Consistency with the quotation
- Luminous flux and input power are consistent with the quoted configuration
- CCT and optic type match the specification (if stated)
D) Traceability
- File naming and revision control are clear (version/date)
- Supplier can provide updated files if optics or LED package changes
If a supplier cannot provide model-specific IES files, treat roadway spacing claims as unverified.
DIALux Intake Form (DIALux-Ready Inputs)
Use these fields in your website form to collect consistent inputs:
1) Project Basics
- País / Cidade
- Tipo de estrada (rodovia / estrada principal / local / parque)
- Project quantity (estimated)
2) Road Geometry
- Road width (m) and lanes
- Median (yes/no) and median width (if applicable)
- Sidewalk / pedestrian zones (yes/no)
3) Pole Layout
- Disposição dos postes (lado único / escalonado / oposto / mediano)
- Pole height (m)
- Arm length / overhang (m)
- Target pole spacing (m) or “optimize spacing”
- Mounting tilt angle (if fixed)
4) Performance Targets (If you have them)
- Target class / requirements (if specified by local authority)
- Priority: higher uniformity vs lower energy vs lower glare
5) Environment & Risk
- Coastal / desert / monsoon / vandal risk
- Dust and soiling severity (light / medium / heavy)
6) Energy & Operation
- Dusk-to-dawn runtime (hours)
- Dimming preference (time-based / PIR boost)
- Required autonomy nights (backup nights)
Attachments (optional but helpful):
- Site drawing, typical cross-section, or reference spacing plan
- Any local lighting requirement document
Project inputs: Download the Project Input Sheet (PDF) ou DOCX and send it with your road class, pole height, and target lux/uniformity.
What You Should Receive (DIALux Deliverables)
A “DIALux-ready proposal” should include:
- DIALux report (PDF) showing:
- road geometry, pole arrangement, mounting details
- luminaire model + optic used (IES referenced)
- spacing results and key performance metrics
- Layout summary:
- pole schedule (height, spacing, arm length)
- recommended optic and mounting notes
- Assumption list:
- mounting height, tilt, maintenance factor (if used)
- target class/criteria used (if specified)
- IES file package:
- IES files clearly named for the quoted models/optics
Copy/Paste RFQ Clauses (IES + DIALux)
Clause 1 — IES Photometric Files (Mandatory for Roadway)
Supplier must provide model-specific IES photometric files for the offered optic(s). Generic or “similar model” IES files are not acceptable for spacing validation.
Clause 2 — DIALux-Ready Report Deliverables
Supplier must submit a lighting calculation report that includes:
- road geometry and pole arrangement assumptions
- luminaire model and optic identification (IES referenced)
- spacing and key performance metrics (as applicable)
- revision control (report version/date)
Clause 3 — Assumptions Disclosure
Supplier must explicitly declare:
- pole height, arm length, tilt
- spacing assumptions (or optimized spacing method)
- target class/criteria used (if specified)
- any maintenance factor assumptions
Clause 4 — Bid Comparability Rule
Bids without IES files and a DIALux-ready input/output package shall be labeled “Unverified / High Risk” before price comparison.
Request IES & DIALux Starter Pack
Get the editable starter pack used to standardize roadway lighting proposals:
- Formulário de admissão do DIALux (preenchível)
- IES acceptance checklist (fillable)
- Deliverables checklist (report + IES package)
- Sample RFQ clauses (copy/paste)
Envie-o para mim:
- E-mail de trabalho
- País/cidade
- Tipo e quantidade de estradas
Deseja uma verificação rápida da sanidade da engenharia?
Compartilhe sua classe de estrada, altura do poste, lux/uniformidade alvo e suposições de PSH do pior mês.
Próximas etapas (manter seu projeto pronto para a licitação)
Certifique-se de que seu projeto de iluminação pública solar atenda a todos os padrões de aquisição e engenharia.
Modelos e evidências
- Hub de todos os guias - dimensionamento, aquisição, comissionamento, manutenção e garantia.
- Hub do Guia do Comprador - escolher um cenário e seguir o caminho da evidência em primeiro lugar.
- Compare as cotações (de ponta a ponta) - óptica de bloqueio/IES, Wavg, bateria Wh, controlador, garantia.
- Dimensionamento para a estação chuvosa (pior mês) - evitar PVs subdimensionados e déficits de tempo de operação.
Lista restrita de um tipo de sistema
- 🚀 Luzes de rua solares All-in-One
- 🌓 Luzes de rua solares All-in-Two
- 🛠️ Tipo Split Solar Street Lights
- 📏 Luzes solares de poste
- ✨ Luzes de rua solares decorativas
- ⚠️ Soluções específicas (À prova de explosão/Híbrido)
Download: Folha de entrada do projeto (pronta para licitação)
Use esse modelo para enviar dados de dimensionamento e solicitar a validação do layout IES/LDT +.
