4 Foot LED Vapor Tight Light 25W/30W/35W/40W/50W 3250–6250 Lumens 3500K/4000K/5000K/5700K/6500K 0–10V Dimming 120–277V

What wattage options are available for the 4 Foot LED Vapor Tight Light?

The 4 Foot LED Vapor Tight Light includes five selectable wattage settings: 25W, 30W, 35W, 40W, and 50W. This range supports matching fixture output to mounting height, spacing, and the level of ambient light needed in the space.

What lumen outputs correspond to each wattage setting?

The lumen packages by wattage are: 25W provides 3,250 lumens, 30W provides 3,750 lumens, 35W provides 4,375 lumens, 40W provides 5,000 lumens, and 50W provides 6,250 lumens. This allows output selection without changing fixture size.

How does 125–130 lm/W efficacy influence energy ROI?

An efficacy of 125–130 lm/W lowers the watts required for a given light level, which can improve payback when replacing older fluorescent vapor-tight fixtures. For ROI estimates, compare the selected wattage setting to the baseline system wattage and multiply the watt reduction by annual run hours and local $/kWh; selecting the lowest wattage that still meets target illuminance typically improves lifecycle cost.

What CCT settings are available, and how are they typically applied?

The selectable CCT options are 3500K, 4000K, 5000K, 5700K, and 6500K. 3500K is often used where a warmer-neutral appearance is preferred, 4000K for general-purpose commercial areas, and 5000K for industrial work zones where visibility is prioritized. 5700K–6500K are used where a cooler, higher-contrast appearance is required for detail recognition.

Can the 4 Foot LED Vapor Tight Light be dimmed?

Yes. The fixture supports 0–10V dimming on 120–277V circuits, enabling light-level control for scheduling, partial occupancy operation, or integration with compatible commercial control systems.

How does vapor-tight construction support plenum integrity and environmental separation?

Vapor-tight housings are commonly specified to help maintain separation between the occupied space and the environment above ceilings or within service corridors. For projects with strict plenum expectations, maintain gasketing integrity during install, avoid unsealed penetrations through the housing, and follow the project’s sealing and routing requirements so the assembly is not compromised.

What thermal management factors matter for long service life in a vapor-tight fixture?

Thermal performance depends on ambient temperature, airflow around the housing, and whether the fixture is installed in a confined run. Maintain intended clearances, avoid contact with insulation or obstructions that trap heat, and confirm site conditions align with the product listing. Stable operating temperatures support lumen maintenance and reduce driver stress in continuous-duty environments.

What certifications and listings does this fixture have?

This model is cETLus Listed and DLC Premium, indicating it meets applicable safety requirements and is listed on DLC at the Premium tier, which is commonly used to support rebate qualification where DLC listing is required.

What are the fixture dimensions, and what should be checked before install?

The housing measures 47.2" L × 3.74" W × 3.15" H. Confirm clearance for mounting points, conduit/entry locations, and any physical constraints in continuous rows or tight utility runs.

What warranty coverage is provided?

The 4 Foot LED Vapor Tight Light includes a 5-year limited warranty. For facilities planning, align expected operating hours and access conditions with maintenance procedures for the installation environment.