Outdoor lighting supply

Outdoor lighting, specified against the standard

Stadium and high mast, high bay, flood, street, tunnel and solar lighting, supplied against a lighting requirement rather than a wattage. Six lines and fourteen builds, from the class a road needs to the autonomy a site without mains can live with.

Road at night lit from both sides by street lighting, with an even pool of light along the carriageway
A road scheme is judged at night, over fifteen yearsOn site

What a specification actually contains

A buyer comparing quotations is usually comparing four documents. The fixture is the smallest part of the difference.

The four documents behind a lighting quotation
DocumentWhat it settlesWho signs it off
Lighting calculationThe level, the uniformity and the maintenance factorDesigner, client
Photometric fileThe distribution of the exact model being suppliedDesigner
Aiming or layout drawingWhere each unit sits and what it points atInstaller
Data and certificate fileThe model, the market and the scope coveredAuthority

This site publishes the method and the standards those documents are written against. It does not publish a wattage, because a wattage without the calculation behind it is a number looking for a project.

Two drawings that explain the range

One is how a scheme is put together, the other is how a retrofit is justified. Both are method, and neither needs a lamp figure to be useful.

Indoor sports hall with a lit playing surface, seating on three sides and roof structure above
A sports hall is designed from the playing surface outward: class, mast positions, aiming, then the fixture
Factory interior at night with an even lit ceiling and a clear working floor
An industrial hall is designed from the task: the level at the bench, then the circulation around it
Building facade lit from below at night, showing the falloff toward the upper floors
A facade shows the falloff of a base mounted wash, which is geometry rather than a fixture fault

What people actually buy

A starting point from the projects quoted here. The standard and the mount decide the rest.

Use case against build
Where it is usedLine and buildWhyWhat to check
Stadium or show courtStadium, high mastAimed down from above the roof line, spill stays insideClass, mast positions, access
Club pitch or training groundStadium, modularModules can be re-aimed and extendedFrame wind load, aiming plan
Racked warehouseHigh bay, warehouseAisle faces and floor from one rowAisle width, racking height
Production hallHigh bay, factoryTask level at the bench, lower level around itTask level, rendering, zones
Building or monumentFlood, facadeA wash or a grazing, chosen from the materialSetback, up light limit
Billboard or signFlood, advertisingA flat field across a rectangleThrow, aim points, spill
Yard or car parkFlood, areaA wide field with a defined edgePole plan, boundary
Municipal roadStreet, municipalDesigned to a class in a calculationClass, maintenance factor
Footway or cycle pathStreet, park pathEven at walking height, low glareSpacing to height
Road tunnelTunnel, entrance and interiorTwo zones, one control curveApproach luminance, closures
Road with no mainsSolar, solar streetAutonomy through the worst weekDesign month, autonomy days

The four decisions that come before the fixture

Every line on this site is a variant of these four.

01The standard, not the wattage

A road has a class, a pitch has a class, a working plane has a level. That requirement is the specification, and every fixture decision follows from it.

Decides the level
02The mount is a civil decision

A pole, a mast, a frame or a roof edge sets the aiming angle, the access and the spill. It is usually fixed before the lighting designer is called.

Decides the aiming
03Who sees the source

Glare is a property of the installation, not of the fixture. The same unit aimed two ways is comfortable in one position and a complaint in the other.

Decides the optic
04Maintenance is half the cost

Whether a driver or a module can be replaced in the field, from the equipment the owner already has, decides the fifteen year cost more than the unit price.

Decides the housing

From brief to first shipment

Five steps. One luminaire and a road scheme follow the same sequence.

  1. 01
    The space and the requirement

    What is being lit, to which standard or class, and who will check it.

  2. 02
    The mount

    Pole, mast, frame, wall or roof edge. The mount is the aiming angle and the access.

  3. 03
    The calculation

    Level, uniformity, glare, at the maintenance factor the client specifies.

  4. 04
    The sample and the documents

    A unit to test on site, with the photometric file and the data sheet for the model.

  5. 05
    Production and spares

    The order, plus the drivers, gaskets and optics that keep the scheme at its level.

Policy

What is published, what is quoted

A page that answers every number is usually inventing some of them.

Publishing policy
ItemOn this siteFrom us
Light levels and uniformityThe standard or class that sets themCalculation for the actual layout
PhotometryHow the optics differ and when to use eachIES file per model and optic
Product dataWhat the sheet has to stateCurrent data sheet, revision dated
PriceNot publishedQuoted per build, quantity and destination
Plant size, headcount, capacityNot published and not claimedAudit pack on request

Four answers before the email

Why is there no wattage on these pages?

Because a wattage is the last variable in a lighting design, not the first. The level the space needs, the mounting height and the distribution decide the fixture, and the same space can be lit to the same requirement by different combinations. The build pages state what the specification sheet has to contain instead.

Which standard decides a road scheme?

The road lighting standard the authority uses, normally EN 13201 in Europe, with the class set by the road type, the traffic and the conflict areas. A sports scheme is normally EN 12193. A tunnel is designed against the approach luminance, usually following the CIE method.

Can you supply a lighting calculation?

Yes, for the layout you provide: pole positions, mounting heights and the surface or carriageway dimensions. The calculation is what a tender is evaluated on, and it is the document that makes a quotation comparable with another one.

Are the products certified for my market?

Certification is model and market specific, so it is confirmed against the model being supplied rather than claimed for a whole range. Ask for the file, its scope and its expiry date, and check that the model on it is the model on the order.

Start with the space and the standard.

What is being lit, to which requirement, mounted where, and what power is available is enough. The reply is a build and a specification sheet.