L-867 vs L-868 Airfield Light Base: Which Standard Does Your Project Need?

When planning airfield ground lighting infrastructure, one of the most consequential decisions made at the design stage is the choice of light base standard. Two designations — L-867 and L-868 — are widely recognized across international airfield projects, each suited to different operational environments and structural requirements.

Selecting the appropriate standard is not simply a procurement decision. It directly affects the long-term structural integrity of the pavement, the safety of airfield operations, and the ease of maintenance over the asset’s service life. For EPC contractors, airport developers, and procurement teams, understanding the distinction early in the project cycle avoids costly corrections once construction is underway.

Understanding the Two Standards

Both L-867 and L-868 refer to base cans — the below-pavement housings into which airfield light fixtures are mounted. They are used across runways, taxiways, and aprons as part of in-pavement lighting systems.

The core difference between them lies in their structural classification. L-867 is designed for lower load environments, while L-868 is built for heavier aircraft traffic and more demanding structural conditions. Both are governed by internationally recognized standards and must be manufactured to precise tolerances to ensure reliable performance in service.

Neither is universally superior — the right choice depends entirely on the operational profile of the airfield zone where the base will be installed.

How the Choice Is Made

The selection process is driven by the structural and operational demands of each zone within the airfield. Key considerations include:

• The type and size of aircraft expected to use the zone
• The frequency of aircraft movements across the pavement
• The pavement classification of the runway, taxiway, or apron
• The long-term development plans for the airport, including potential fleet upgrades

In general terms, zones that accommodate heavier or high-frequency aircraft movements require the higher structural classification. Zones serving lighter traffic — general aviation, regional operations, or low-use taxiways — may be appropriately served by the lower classification.

A common and important point for mixed-use airports: where a single taxiway is expected to eventually serve heavier traffic as the airport grows, specifying to the higher standard from the outset is more cost-effective than a future replacement programmed.

Upgrading a base standard after pavement has been laid requires excavation, pavement reinstatement, and potential disruption to airfield operations. Specifying conservatively at the design stage is nearly always the more economical decision over a 20-year asset horizon.

What to Look for in a Supplier

Regardless of which standard is specified, the quality of manufacture determines how the base performs over its service life. Several factors are worth evaluating when assessing a supplier:

Dimensional Consistency

Airfield light bases must be manufactured to tight dimensional tolerances so that fixtures seat correctly and the base transfers load evenly to the surrounding pavement. Inconsistent dimensions across a batch create installation problems on site and can affect long-term performance.

Corrosion Protection

Bases are set permanently into pavement and exposed to groundwater, de-icing chemicals, and in coastal environments, salt ingress. The corrosion protection method — not just the base material — determines service life. A base that corrodes prematurely causes pavement movement and light misalignment, both of which are safety concerns.

Certification and Traceability

For airport procurement — particularly for projects under national aviation authorities — bases should come with third-party certification confirming compliance with the relevant standard, along with material traceability documentation for each batch. A supplier’s self-declaration is rarely sufficient for formal project acceptance.

Interoperability

Bases and fixtures often come from different suppliers. Confirming compatibility between the base receptacle and the fixture mounting system before procurement avoids a common and avoidable site problem — dimensional mismatch discovered only during installation.

Frequently Asked Questions

Can L-867 and L-868 bases use the same light fixtures?

In most cases, yes — fixtures are typically designed to be compatible with both base standards. However, compatibility should always be confirmed with both the base manufacturer and the fixture supplier before procurement, as minor dimensional variations between manufacturers can create fit issues on site.

Is it acceptable to use different base standards on the same taxiway?

This depends on the project specification and the structural requirements of each section. Where different sections of a taxiway have clearly different traffic profiles, mixed standards may be appropriate. However, this requires clear documentation to avoid maintenance confusion in future, and the project engineer should confirm the zone demarcation in writing.

How long should an airfield light base last?

Service life depends primarily on material quality, corrosion protection, and the operating environment. With appropriate specification and quality manufacture, bases are expected to remain serviceable for the design life of the pavement — typically aligned with major runway rehabilitation cycles. The limiting factor is almost always corrosion rather than structural wear.

Getting the Specification Right

The decision between L-867 and L-868 is straightforward once the operational profile of each zone is clearly defined. The more common challenge is ensuring that the base, once specified, is manufactured and certified to the standard it claims — and that it is compatible with the rest of the lighting system.

ARIIX Airfield manufactures both L-867 and L-868 base systems with third-party certification and full material traceability, suitable for projects under national aviation authority oversight. If your team is in the specification or tendering phase, we are happy to discuss your project requirements.

Reach us at ariixairfield.com/contact/