Writing a Tender Specification for Portable Lighting

A tender specification that's too vague invites mismatched bids; one copied directly from a single manufacturer's datasheet can unintentionally exclude perfectly suitable equipment from other suppliers. Here's how to write one that actually gets you the right result.

Specify the Requirement, Not Just a Product's Numbers

Rather than copying a single model's exact figures (e.g. "65,000 lumens, 50kg-class, triple-wheel chassis"), specify the underlying requirement: minimum lumen output for the application, maximum deployment time by how many personnel, IP rating threshold, and power source requirements. This gets you comparable bids rather than bids that only match one product's marketing sheet.

Figures Worth Including

• Minimum lumen output appropriate to the application (see our lumens estimation guide)
• IP rating threshold — state the minimum (e.g. "IP65 or higher") rather than an exact figure that only one product happens to hit
• Deployment time and crew size — if single-person deployment matters operationally, state it as a requirement, not just a nice-to-have
• Power source — battery-only, AC-capable, or either, depending on site access
• Warranty period and after-sales service coverage for the deployment region

Avoid Over-Specifying Brand-Specific Features

Features unique to one manufacturer's design (a specific chassis type, a named accessory) narrow the field of eligible bidders unnecessarily unless that exact feature is genuinely required for the application. Specify the functional outcome (e.g. "stable on uneven terrain") rather than the specific mechanism, unless there's a real reason to require one particular design.

Reference Standards, Not Marketing Language

Specify IP ratings tested per IEC 60529 rather than accepting "weatherproof" as a qualifying claim — see our IS Standards guide for the reasoning.

Recommended Next Steps

Our full product spec sheets list every technical figure in a format that can be adapted directly into a tender document. Contact us if you'd like help translating a project's real requirements into a clear specification.