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4FT LED stairwell luminaire with field-selectable lumen output and color temperature, built specifically for up-and-down stairwell illumination. Choose from 4,200, 4,800, or 6,000 nominal lumens and 3500K, 4000K, or 5000K color temperature. Housed in painted steel with a PMMA frosted lens, and available with an optional occupancy dimming sensor designed to sense motion in both directions of a stairwell.
Ideal for stairwells in commercial, multi-family, educational, and institutional buildings requiring reliable, code-compliant egress lighting.
| Attribute | Value |
|---|---|
| Brand | BEST LIGHTING |
| Series | SW-LKFS (Lumen and Kelvin Field Selectable Stairwell) |
| Lighting Technology | LED |
| Fixture Type | LED Stairwell Luminaire |
| Size | 4FT (48″ L x 4.5″ W x 4″ H) |
| Wattage | 29W / 34W / 46W (by lumen tier) |
| Lumens | 4,200 / 4,800 / 6,000 Nominal, Selectable |
| Efficacy | Up to 152 lm/W |
| CCT | 3500/4000/5000K Field Selectable |
| CRI | 80+ |
| Voltage | 120-277V AC, 50-60Hz |
| Dimmable | Yes, 0-10VDC |
| Power Factor | > 0.90 |
| THD | < 20% |
| Surge Protection | 2.0kV |
| Housing / Lens | Painted Steel Housing, PMMA Frosted Lens |
| Mounting | Surface Mounting |
| Rating / Environment | Damp Locations, -20°C to 50°C (-4°F to 122°F) |
| Certifications | cULus Listed (Damp Locations, 1598 & 924), DLC 5.1 Premium, FCC Part 15 Class A |
| LED Life | 190,000 Hours (L70), 58,000 Hours (L90) |
| Weight | 8 lb |
| Accessories Available | Occupancy Dimming Sensor (ODS), Emergency Driver (600/1200/1560 lm), Sensor Remote Control (sold separately) |
| Warranty | 5-Year (Electronics & Housing) |
| Package Quantity | 1 |
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