Where is a 4-foot linear fixture at 4,200 lumens typically specified?
This lumen package is commonly specified for storage rooms, utility corridors, back-of-house retail, maintenance areas, and light-duty workspaces where moderate ambient levels are required and fixture spacing is set to match the ceiling height and aisle width.
What does 4,200 lumens at 32W translate to in efficacy?
The fixture produces 4,200 lumens at 32W, which calculates to 131.3 lm/W. Maintained workplane results depend on mounting height, spacing, and surface reflectances in the space.
When is the 32W package a better fit than higher-output 4-foot options?
The 32W package is often selected when ceilings are lower, when tighter spacing is already present, or when the project requires reduced wattage per zone while maintaining practical visibility for navigation and routine task work.
How does the ribbed frosted diffuser affect glare and appearance?
A ribbed frosted diffuser spreads the emitted light and reduces direct view of the LED array, which can lower perceived high-angle brightness. It also helps keep the lens surface visually uniform across the length of the fixture.
How should 3500K, 4000K, and 5000K be selected for service and task areas?
3500K is often specified for mixed-use back-of-house spaces that transition between public and service zones. 4000K is commonly used for general task areas where neutral white is the standard. 5000K is typically specified where contrast supports inspection, label reading, and safety visibility.
What does 0–10V dimming support in a linear lighting layout?
0–10V dimming supports occupancy sensors, time scheduling, and zone-based light level control. It also allows light level trimming during commissioning to align measured foot-candles with project targets.
How does 120–277V input affect commercial branch circuit planning?
The 120–277V driver supports standard commercial voltages, including 277V lighting circuits. This can simplify fixture standardization across projects with mixed electrical services.
What does damp-location rating cover for this fixture type?
Damp-location rating covers areas subject to humidity and intermittent condensation, such as unconditioned storage rooms and covered service areas. For direct spray, washdown, or outdoor exposure, a wet-location or sealed vapor-tight luminaire is typically required.
What should be checked for fit and clearance using the listed dimensions?
Verify available space using the overall dimensions of 48 inches length by 3.35 inches width by 3.56 inches height. Confirm that the mounting method maintains required clearances from sprinklers, doors, and overhead services.
What is the rated life and warranty term, and what does that affect for maintenance planning?
The fixture is rated for 50,000 hours and includes a 5-year warranty. For maintenance planning, track fixture counts and locations by zone and keep purchase documentation for warranty administration.