Municipal lighting is not bought; it is scored. A committee reads a written specification, marks each clause, and an auditor checks the result after installation. Suppliers who understand the scoring table win before the price envelope is opened.

Clause 1: Maintained Lumens, Not Chip Counts

Committees ask for a maintained lumen figure. The LC3-80W declares 9,000 lm typical from 150 LED chips at 80W with a 140W PV module. Declared values matter because the lighting calculation in the bid is built on them; an optimistic number that cannot be reproduced becomes a defect claim later.

Clause 2: Light Distribution

A bright lantern on a narrow carriageway spills light into gardens and windows. T3 distribution puts intensity on the road and keeps spill low. For municipal approval, this is often the deciding technical point, because resident complaints are a political cost the committee wants to avoid.

Clause 3: Behaviour Across the Night

Tenders increasingly specify dimming profiles. The fixture supports PIR motion sensing with a dimmed baseline and boosted output on detection, plus dusk-to-dawn control. The scored question is not “does it dim" but “can the profile be locked so the contractor cannot change it after handover".

Clause 4: Structure and Service

Clause 5: Installation and Programme Risk

Split systems separate the panel from the lamp head, which suits sites where the panel cannot sit on the pole. That flexibility is scored under programme risk: can the contractor install without new trenching, and can the work be phased around traffic? A two-person crew and a bracket that fits existing poles answer both questions.

Where Bids Fail

• Lumen figures that cannot be traced to a test report.
• Warranty text that does not name the replaceable modules.
• No spare-parts price, leaving the maintenance budget undefined.
• Optics that light the footpath instead of the carriageway.

“We do not mark the brochure. We mark the documents that survive an audit." — Tender committee member, municipal project

For suppliers, the lesson is to write bids the way auditors read them: traceable numbers, named parts and a service plan with prices. For buyers, it is to put those clauses in the document before the first bid arrives.