What ceiling types and commercial spaces typically specify a 2×4 selectable panel like this?
This 2×4 format is specified for suspended grid ceilings in offices, classrooms, corridors, healthcare support areas, retail back-of-house, and light industrial administrative spaces. The 2.875-inch depth is relevant where plenum clearance and obstructions above the grid must be coordinated.
How does the wattage-selectable driver change the way the fixture is specified on a project?
Wattage selectable operation allows one luminaire to cover multiple lumen packages during commissioning. The installer can set 25W, 30W, 40W, 45W, or 50W to align with the lighting schedule, target foot-candle levels, or field conditions without changing the fixture count.
What lumen outputs correspond to each wattage setting on this 2×4 panel?
The selectable outputs are 3,125 lumens (25W), 3,750 lumens (30W), 5,000 lumens (40W), 5,625 lumens (45W), and 6,250 lumens (50W). These steps support design flexibility when the same ceiling grid includes different task zones.
What is the efficacy across the selectable wattage settings?
Each setting calculates to 125.0 lm/W: 3,125 ÷ 25W, 3,750 ÷ 30W, 5,000 ÷ 40W, 5,625 ÷ 45W, and 6,250 ÷ 50W. Delivered illumination still depends on ceiling height, spacing, and room reflectances.
How should the selectable CCT options be chosen for different commercial environments?
3500K is commonly used to reduce visual harshness in customer-facing and mixed-use spaces. 4000K is frequently specified for offices and general circulation areas. 5000K is often selected where higher contrast supports detail work, wayfinding, and camera monitoring consistency.
What does 0–10V dimming support for controls and commissioning?
0–10V dimming supports integration with occupancy sensors, time schedules, and centralized lighting control systems. It also supports commissioning trim so light levels can be set to the project requirement after installation.
What does the 120–277V input range support for electrical planning?
The driver operates on 120–277V, which supports standard commercial branch circuit voltages, including 277V lighting circuits. This reduces the need for voltage-specific models across multi-site specifications.
How does a metal housing with a polycarbonate lens affect durability in a drop ceiling environment?
A metal housing provides structural stability at the grid interface, while a polycarbonate lens supports impact resistance during installation and ceiling access events. This combination is often specified in facilities where ceiling tiles are removed frequently for service work.
What does the damp-location rating mean for placement within a building?
Damp-location rating supports installation where moisture or condensation can occur, such as vestibules, restrooms, and certain utility spaces. It is not a substitute for wet-location requirements where direct water exposure is expected.
What does DLC Premium listing support for project documentation and rebates?
DLC Premium listing is commonly referenced for utility rebate qualification and for documentation requiring third-party verification of performance. Eligibility should be confirmed with the local utility program, since requirements vary by territory.
How should 100,000-hour rated life and a 10-year limited warranty be used for maintenance planning?
A 100,000-hour rating supports long replacement cycles in extended-hour operations. For maintenance planning, record the selected wattage and CCT settings by zone and retain submittal and control wiring documentation so replacements match light output and control behavior.
What minimum operating temperature of -4°F indicates for cold starts?
A -4°F minimum operating temperature indicates the driver and LED system are rated for cold starts down to that ambient temperature. For unconditioned spaces that can fall below -4°F, confirm site conditions and any manufacturer guidance before specifying.
