Lithonia Lighting LBR4 NCH: 4-Inch New Construction LED Downlight
Comprehensive specifications, features, ordering information, and compatibility for the Lithonia Lighting LBR4 NCH 4-inch New Construction LED Downlight.
Features & Specifications
- Intended Use: Corridors, lobbies, conference rooms, private offices.
- Construction: New Construction.
- Ceiling Thickness: 1/2" - 1-1/2".
- Ambient Temperature: Up to 25°C.
- IC Rated: Up to 1000lm.
- Optics: 3-step MacAdam Ellipse binning, 55° cutoff.
- Conductors: Approved for 8 (4 in/4 out) No. 12 AWG conductors rated for 90°C.
- CRI: 80CRI standard (90CRI optional).
- UGR: Zero for fixtures aimed at nadir with a cutoff ≤ 60°, per CIE 117-1996.
- Electrical: Adjustable lumen output (four module options), MVOLT 120/277V, 50/60Hz driver with 0-10V & 120V Phase Dimming (10% or 1% min dimming).
- Compliance: FCC CFR Title 47 Part 15 Class A (277V), Class B (120V).
- Lumen Maintenance: L80 at 60,000 hours.
- Listings: Certified to US and Canadian safety standards. Damp location standard (Wet Location (WL) optional). ENERGY STAR® certified (some configurations). TAA compliant. UFC, GSA P100 compliant. ROHS compliant. Title 24 compliant (90CRI, up to 1000lm).
- Warranty: 5-year limited warranty.
Performance Data Summary
Performance data is provided for various lumen outputs, CCTs (30K, 35K, 40K, 50K), and CRI (80CRI). Key metrics include Delivered Lumens and Lumens Per Watt (LPW).
Example Performance (LBR4 AR LSS MWD, 80CRI):
- AL01 (500LM): 570 Lumens @ 6W (99 LPW)
- ALO2 (2000LM): 2471 Lumens @ 25W (99 LPW)
- ALO4 (5000LM): 4915 Lumens @ 49W (100 LPW)
Lumen Output Multipliers:
- Finish: Clear Semi-spec (AR LSS) 1.0, Metallic Silver (MS) 0.84, White Painted (WR) 1.03, Black Painted (BR) 0.60.
- CRI: 80 (1.0), 90 (0.874).
- CCT: 3000K (0.98), 3500K (1.0), 4000K (1.01), 5000K (1.03).
Ordering Information & Configuration
The LBR4 NCH offers extensive configuration options for customization:
Series/Housing Style:
- LBR4 NCH: 4" New Construction
- LBR4WW NCH: 4" New Construction Wall Wash
Lumen Output:
- Adjustable Lumen Output (ALO1-ALO4): Ranges from 500lm to 5000lm.
- Fixed Lumen Output (05LM-50LM): Available from 500lm to 5000lm.
Color Temperature:
- Switchable CCT (SWW1): Offers 3000K, 3500K, 4000K, and 5000K.
- Fixed CCT: Options include 2700K, 3000K, 3500K, 4000K, 5000K.
Reflector Options:
- Colors: Clear (AR), Black (BR), Metallic Silver (MS), White (WR), Custom (TCPC, FCPC, TRALTBD, FRALTBD).
- Finish: Semi-specular (LSS).
- Flange: Self-flanged, White (TRW), Black (TRBL), Custom.
Distribution:
- Options include Medium Wide (MWD), Wide (WD), and Wallwash (WW).
Voltage & Driver:
- Voltage: MVOLT (120V, 277V, 347V).
- Drivers: UGZ (0-10V dimming to 10%), UGZ1 (0-10V dimming to 1%), DALI, D1 (1% min dimming for JOT).
Emergency Options:
- Available options: No Emergency Needed, ELR, ETS, E10WCP, E10WCPR, E10WRSTAR.
- Emergency battery packs are available for field installation.
Control Input:
- Options include None, JOT (Just One Touch), nLIGHT, nLIGHTER, and nLIGHT AIR (NLTAIR2, NLTAIREM2).
Other Options:
- High CRI (90CRI), Airtight (AT), Extended Conduit (EC1, EC6), Wet Location (WL), Quick Disconnect Plugs (QDS), Chicago Plenum (CP).
Option Value Ordering Restrictions: Please refer to the full specification sheet for detailed compatibility information between various options.
Accessories
- Goof Rings: LBRGR56**, LBRCPGR56** for additional trim coverage.
- Trims: Various 4" reflector and wallwash trims available (LBRO4**, LBRW4**).
- Transformer: Field installed 347V Step-down transformer (LBR SDT 347V 75W ASM).
- Sloped Ceiling Adapter: SCA4 for specific slope angles.
Dimensional Information
Plenum Depth: Typically 3.44 inches for 500-2000 lumen outputs. Higher lumen outputs may have different requirements.
Ceiling Cutout: Standard 5-1/8" for a 4" aperture.
Ceiling Coverage: Various trim and goof ring options are available to accommodate different ceiling opening sizes.
Installation diagrams illustrate typical configurations for new construction frames, including options for standard and Quick Disconnect System (QDS) connections.
Photometry & Performance
Detailed photometric data, including distribution curves, zonal lumen summaries, coefficients of utilization, and average luminance, is provided for specific product configurations.
Emergency Mode Lumens: Calculated using the formula: Delivered Lumens = 1.25 x P x LPW, where P is the emergency driver output power.
Dimmer Compatibility
The LBR4 NCH is not compatible with DALI or DMX dimmers.
Line Voltage Dimming: Compatible with a range of MLV and INC dimmers from Lutron and Leviton.
0-10V Dimming: Supports various 0-10V dimmers and control systems from manufacturers like Acuity, Lutron, WattStopper, and Crestron.
Control Systems & Connectivity
JOT (Just One Touch):
Provides wireless, app-free lighting control via Bluetooth Low Energy (BLE), enabling wireless dimming and switching.
nLight® Wired Controls:
Features include various wall controls (Push-Button Wallpod, Graphic Wallpod), occupancy sensors, photocell controls, and CAT-5e cabling for integrated system control.
nLight® AIR Controls:
An ideal solution for retrofit and new construction, offering wireless control with integrated smart sensors. Supports UL924 sequence of operation for emergency (EM) devices.
Wiring Diagrams:
Illustrative diagrams demonstrate example group fixture control setups using nLight systems, incorporating dimming/control packs, wall pods, daylight sensors, and occupancy sensors.
